Bristol Palin's former fiancé and father to her child Tripp is talking about their sex life on national television. Levi Johnston not only says he practiced safe sex "most of the time" when they were together, he also reveals to Tyra Banks that he believes Alaska Gov. Sarah Palin knew he and Bristol were having sex when they lived under her roof. "I'm pretty sure she probably knew. Moms are pretty smart," Johnston, 18, says in an interview set to air April 6. The couple, who were high school sweethearts, planned to wed after graduating – but ended up splitting earlier this year. At the time, Johnston told Good Morning America that he needed to mature before getting married. Meanwhile, now that they are just friends and not romantically involved, PEOPLE has confirmed with a source that Bristol is not dating but has been "texting and chatting" with a high school boyfriend she had before Johnston. Johnston's mom, Sherry, and sister Mercede, join him on The Tyra Banks Show, talking about the gag order imposed on them during Palin's vice presidential campaign. "We were supposed to say that all questions need be brought up to the McCain campaign. Other than that we had to say 'no comment,' " explains Mercede.

The singing sensation Susan Boyle and the man who judges her on "Britain's Got Talent," Simon Cowell, are coming on Oprah Winfrey's show for a special episode. In an episode titled "The Oprah Winfrey Show: The World's Got Talent," Simon will address the rumors of him leaving "American Idol," while Susan welcomes cameras into her home in Scotland for her debut appearance on Oprah's program. In addition to Susan, Simon will also debut artists from around the world that he calls "the next big thing." The musical episode of Oprah will air Monday, May 11.

Among the nominees for Daytime Emmys announced today were Rachael Ray, Dr. Phil and the hosts of "The View." The awards -- named by the National Academy of Television Arts & Sciences and announced on "The Today Show" -- recognize outstanding achievement in all fields of daytime television. Nominated for Outstanding Talk Show/Entertainment were "Rachael Ray," "Live! with Regis And Kelly" and "The Ellen DeGeneres Show." The nominations for Outstanding Talk Show/Informative format went to "Dr. Phil," "The Doctors" and "The Tyra Banks Show." The five "View" panelists -- Whoopi Goldberg, Joy Behar, Elisabeth Hasselbeck, Sherri Shepherd and Barbara Walters -- share the nomination for Outstanding Talk Show Host, competing against DeGeneres, Ray, Regis Philbin and Kelly Ripa. The lifetime achievement award this year will go to PBS' long-running children's program "Sesame Street." Vanessa Williams is set to host the 36th Annual Daytime Entertainment Emmy® Awards, which will be broadcast live from Los Angeles on Aug. 30 on the CW.

Conan O'Brien will debut the new "The Tonight Show" on June 1, with first-week guests including Pearl Jam, Gwyneth Paltrow, Tom Hanks and Ryan Seacrest. "Ryan Seacrest and I are lovers, so that just makes sense. That is around. The Post, I think, Page 6 already had it," Conan jokes, displaying his irreverent sense of humor. On the serious side, the heir to Jay Leno, Johnny Carson, Steve Allen and Jack Paar, is aware that he has really big shoes to fill, but he plans on doing that by simply doing what he thinks is funny. "Johnny Carson, when I met him years ago, told me, 'Just be yourself,'" Conan says. "That was back in 1993. That is basically all anyone who knows anything about these shows can tell you: You've got to do it your way." Toward that end, Conan plans to import certain things from his "Late Night" show, such as the "Year 2000," "Noches de Passion con Conan O'Brien," and Jim Gaffigan's "Pale Force" comedy bits, while also using the opportunity to do a lot of fresh sketches. "I want to keep the best of the 'Late Night' show ... a couple of pieces here and there that really worked for us," he adds. "I see no reason why Triumph, the insult dog, can't file reports for us." Conan says that just the fact that he is now living in Los Angeles makes people laugh, considering him a fish out of water. But also being on the Universal Studios lot, he feels, will present him with a brand new perspective on material. As for the new set, Conan says that it will be Los Angeles-style art deco, but "elegant," and he will keep his theme song, but it will be "turbo charged."

Jay Leno hosted his last episode of "The Tonight Show" on Friday evening, passing the torch to his final guest and successor, Conan O'Brien -- but not before poking some fun at celebs such as Jon and Kate Gosselin. In his opening monologue, Leno reflected on his 17-year run as "Tonight Show" host. "When we started this show, Jon and Kate were both eight," he joked. Then he brought out his last guest, O'Brien, who inherets "The Tonight Show" next Monday. "I just want to say, I couldn't be happier," Leno told O'Brien. "You were the only choice. You were the perfect choice. You have been an absolute gentlemen in private and in the press." "Conan rocks!" an audience member shouted out. Leno replied, "I agree, Conan rocks." Conan said he knew he had big shoes to fill, and cracked that eventually, "I want to try and fill little shoes. Some day I want to replace a local weatherman who's been on the air for about three months and who is no good and everybody hates." After looking back at some of his most popular "Tonight Show" skits over the years, Leno said his famous predecessor Johnny Carson taught him that "you always want to have jokes. And that's what we've been trying to do for the last 17 years, make you laugh. And it's been an honor and a privilege to do that." At the end of the show, Leno raised a curtain to reveal the 68 children born to his staff over the 17 years. "So that's what I would like my legacy to be," he said. "When these kids grow up and they go, 'Hey, mom and dad, where do you guys meet?' They're going to say they met on the stage of 'The Tonight Show.'" Leno returns to TV on a new primetime show on NBC this fall.

Former President George W. Bush's daughter, Jenna Bush Hager, is set to become a correspondent for the U.S. television news and talk show "Today." NBC, which airs "Today" weekday mornings, said on Monday it had hired Hager, 27, to be a contributing correspondent starting September 14. "In previous appearances, she displayed a natural ability to communicate and connect," Jim Bell, the show's executive producer, said in a statement. "She has great passion about important subjects, especially education and literacy." Hager started teaching schoolchildren in Washington in 2005 and has served as an intern for UNICEF, touring Latin America and the Caribbean to document the plight of impoverished children. She currently is the Young Leadership Ambassador & Chair for UNICEF's Next Generation committee. Hager has written two books that made The New York Times bestsellers list, "Ana's Story: A Journey of Hope," the true story of a 17-year-old mother in Latin America who has HIV, and "Read All About It!," a picture book co-written with her mother, former first lady Laura Bush. Hager also has written stories for The New York Times and CosmoGIRL! magazine. She graduated from the University of Texas in 2004.

Oprah Winfrey is bringing her show to the streets of downtown Chicago next week. A Harpo Productions spokeswoman said Tuesday that Winfrey is celebrating the kickoff of the 24th season of "The Oprah Winfrey Show" by taping the show on a stretch of Chicago's Michigan Avenue. Part of the street, which is known as the Magnificent Mile, will be shut down from early Monday until early Wednesday, Sept. 9. The taping is on Tuesday and will feature a performance by the Black Eyed Peas.

Tony Blair, the former prime minister of Britain, will take a break from seeking peace in the Middle East to trade jokes with comedian David Letterman on his first ever "Late Show" guest appearance next week, U.S. network CBS said on Wednesday. The prime minister of Britain from 1997 to 2007, Blair is coming to the United States to begin the second year of a teaching engagement at Yale University and will appear on Letterman's late-night talk show on Tuesday, September 8. Letterman has hosted many political figures, including President Barack Obama during his run for the White House, and his former Republican opponent, Sen. John McCain. Since leaving the prime minister's office, Blair has worked for Middle East peace on behalf of the "Quartet" of the United States, the United Nations, the European Union and Russia. Blair will share the "Late Show" stage with actress Julianna Margulies.

Oprah Winfrey is set to dedicate an episode of her daytime talk show to remembering the late King of Pop Michael Jackson, including revealing untold stories from their historic 1993 interview. In an episode airing during the "The Oprah Winfrey Show"'s premiere week, the talk show maven will have an encore presentation of parts of her sit-down with Jackson. The episode will air Wednesday, September 16, after Oprah's no-holds-barred, two-episode interview with Whitney Houston kicks off Monday, September 14.

TV talk show host Tyra Banks made Perez Hilton promise to stop writing derogatory stories about underage stars just days before Demi Moore chastised the celebrity blogger for targeting her daughter Tallulah. Moore lashed out at Hilton last week over a set of "inappropriate" pictures of her 15-year-old daughter, accusing him of "exploiting" teenagers. Moore claimed the shots of the youngster, wearing a low-cut top and a revealing pair of shorts, compared to "child pornography" and called Hilton a "pervert." It has now been revealed that just days before Moore's outburst, the gossip king filmed an episode of Banks' self-titled TV show where the former model made him vow to stop bad-mouthing stars under the age of 18. In the show, recorded on August 18, Banks tells Hilton, "When you're a kid, especially the kid of a celebrity, I don't feel they should be put in the public in a way to be made fun of. I feel they should be protected." Moore asked Hilton to rein in his gossip for a year, but the pair compromised with a six-month deal in return for Hilton being offered a guest role on Banks' other show "America's Next Top Model."

Oprah Winfrey's nationally syndicated talk show is coming to satellite radio -- with a day's delay. Sirius XM Radio and Winfrey's Harpo Radio on Thursday unveiled a programing revamp for Oprah Radio on Sirius that will start mid-month. Among the plans: new episodes of "The Oprah Winfrey Show" will air the morning after they air on TV. This is the first time the show will be available in another medium, the firms said. Oprah Radio also will broadcast multiple classic episodes every day from the show's library of more than 20 years.

President Barack Obama will appear on comedian David Letterman's late-night talk show next week, the CBS network said on Tuesday. Obama will be the sole guest on the Monday, September 21, broadcast of the "Late Show with David Letterman", CBS said. Obama became the first sitting president to appear on any U.S. late-night talk show when he was a guest in March on NBC's "The Tonight Show," hosted by Jay Leno. The president's Monday appearance on Letterman's program marks the first time Obama has been on the program since being elected president last November. He has made five previous appearances on "The David Letterman Show", including one in September during his campaign for the White House.

Jay Leno's new prime-time chat and comedy TV show lost more than 7 million viewers on its second night after a slew of bad reviews but was still the No. 1 U.S. network show of the night, audience ratings figures showed on Wednesday. "The Jay Leno Show" -- the closely watched cost-cutting experiment by NBC -- was watched by 10.7 million Americans on Tuesday night, compared to a revised 18.4 million on its Monday debut, according to Nielsen Media Research. Leno's move from his former 11:30 p.m. time period to the prime-time slot five nights-a-week that is traditionally occupied by expensive scripted drama is being scrutinized by the entire network TV industry as it struggles to cut costs and retain audiences. General Electric Co's NBC network has been particularly hard hit and has been in last place for four years among the leading four networks. Most TV critics slammed the new show after its Monday premiere, saying it was tired and old and failed to live up to the media hype of the past two months. A drop off was expected and NBC executives have said they are looking at the long-term success of the show. The network noted that the Tuesday audience was still double the average 5.2 million who used to tune in to "The Tonight Show" with Jay Leno at 11:30 p.m. "The Jay Leno Show" also attracted more viewers on Tuesday than the season finale of "Big Brother" on rival CBS Corp's CBS, which drew an audience of 7.9 million, and Walt Disney Co's ABC repeat showing of an interview with the actor Patrick Swayze, who died of pancreatic cancer on Monday. The Swayze interview was seen by 6 million. The leading U.S. networks will roll out the bulk of their new prime-time TV schedules in the next two weeks.

When Whitney Houston gave her infamous “crack is wack” interview to Diane Sawyer in 2002, she owned up to a mild drug problem. Over the past two days on Oprah, the singer revealed the true extent of her troubles: that she was addicted to marijuana laced with rock cocaine and emotionally battered by husband Bobby Brown until she gathered the strength to leave him in 2006 following rehab stints and an intervention by her mother, Cissy. The second part of Houston’s Oprah appearance featured an emotional performance of “I Didn’t Know My Own Strength” that left Winfrey in tears. (The song came off stronger than Houston’s lackluster tunes on Good Morning America, which were filmed the day after she taped the Oprah interview.) Houston told Winfrey she originally dropped out of the spotlight because she “wanted to be normal — I had no normal 20s, I had no normal 30s.” But her 14-year marriage to Brown spiraled out of control and nearly claimed her career.

Lisa Ling, a former co-host of "The View," will be back as a guest co-host for two days next month. ABC said Thursday that Ling will sit alongside Barbara Walters, Joy Behar, Whoopi Goldberg and Sherri Shepherd for the Oct. 5 and 6 broadcasts of the weekday talk show. She'll sub for regular co-host Elisabeth Hasselbeck, who's on maternity leave until mid-October. Ling left "The View" in 2002 after three years as a regular. She's now a correspondent for "The Oprah Winfrey Show" and CNN. She returned as a guest co-host in 2003 and made three guest appearances in 2008.

The man accused of attempting to extort $2 million from talk-show host David Letterman has been exposed as a top TV producer. On Thursday Letterman revealed he had become the victim of a bribery plot over his sexual affairs with several female members of his staff. The blackmailer demanded the cash to keep the information out of the public domain -- but Letterman turned to authorities and the man was arrested in New York on Thursday. CBS network chiefs have now unveiled the identity of the alleged extortionist -- producer Robert 'Joe' Halderman, who works on the channel's true crime program 48 Hours. Halderman was reportedly involved in a relationship with Letterman's former assistant Stephanie Birkitt, who allegedly enjoyed an affair with Letterman until 2003. A statement released by TV bosses on Thursday reads, "CBS was made aware of an ongoing police investigation involving David Letterman and an employee at 48 Hours, who was subsequently arrested earlier today on charges of attempted grand larceny in the first degree." Halderman has since been suspended from his job pending further investigation. Letterman married longtime girlfriend Regina Lasko in March. The couple have a son born in 2003.

Disgraced talk-show host David Letterman has publicly apologized to his wife for cheating on her before they were married. Speaking for the first time since exposing an extortion attempt that set out to shame the TV personality as a love rat, and confessing to a string of affairs with colleagues, Letterman had a special message for his wife Regina Lasko during a taping of his Late Show program on Monday. In his monologue at the beginning of the show, he said, "She has been horribly hurt by my behavior, and when something happens like that, if you hurt a person and it's your responsibility, you try to fix it. "At that point, there's only two things that can happen -- either you're going to make some progress and get it fixed, or you're going to fall short and perhaps not get it fixed. So let me tell you folks, I got my work cut out for me." He also apologized to the ex-staff members he has inadvertently dragged into the scandal. Letterman added, "I'm terribly sorry that I put the staff in that position... My thanks to the staff for, once again, putting up with something stupid I've gotten myself involved in."

A Saudi court has sentenced a man to five years in jail and 1,000 lashes for boasting about his sexual exploits on television, in a case that has divided public opinion in the conservative Islamic kingdom. Abdul-Jawad, a divorced father of four, was arrested in August after discussing his premarital sexual encounters, showing off his pick-up techniques and displaying some sex toys and lubricants on a Lebanese TV program Ahmar bl Khatt al A'arid. His comments caused a public outcry in Saudi Arabia, where the religious elite has vast powers over society and religious police enforce the segregation of men and women in public. King Abdullah has begun to reform education and the judiciary in recent years, partly to discourage Islamic militancy. But he faces resistance from clerics and conservative princes and analysts say the case gives fresh momentum to some clerics' calls for strict curbs on social freedoms. Three of Abdul-Jawad's friends who appeared on the Lebanese Broadcasting Corporation "LBC" were sentenced to two years in jail and 300 lashes each. LBC is a popular channel in Saudi Arabia, one of the world's most conservative societies, and many Saudis tune into its Western-style entertainment programs and talk shows. Abdul-Jawad, 32, spoke from his bedroom on an episode of "Ahmar bl Khatt al A'arid". He was shown driving his red convertible to a shopping mall where he said he used his mobile phone to pick up girls. A court official said that, on top of the lashings and jail sentence, Abdul-Jawad's phone and car would be confiscated and he would be banned from traveling after completing his term. Lawyers say Abdul-Jawad could have been given the death penalty. Judges, who are clerics of Saudi Arabia's strict Wahhabi school of Islam, have wide powers of discretion. Abdul-Jawad's brother said it would be difficult for him to be accepted back into society. "Now he has been fired from his job and after his jail term it won't be possible for him to get a job in government or the private sector because he was charged with a case of moral indecency," the brother, who did not want to be named said.

The Fox network says Carrie Underwood will host a two-hour variety special tentatively titled, "Carrie Underwood: An All-Star Holiday Special," to air Dec. 7. The network says Underwood will perform new music from her upcoming album, previous hits and holiday classics. Musical guests will include Dolly Parton, Brad Paisley and David Cook. Underwood won season four of "American Idol." The 26-year-old country singer is a four-time Grammy winner. Her new album will be released Nov. 3.

First Lady Michelle Obama will appear on an upcoming episode of "The Jay Leno Show," says a new report. The First Lady is set to appear and participate in a comedic "rapid-fire questions" segment via satellite from Washington. She will answer 10 questions as part of the segment. Mrs. Obama's appearance on "The Jay Leno Show" will be on Friday night on NBC.