**FILE** Former President George H.W. Bush and wife Barbara arrive for the premiere of HBO's new documentary about his life, "41," near the Bush family's summer home in Kennebunkport, Maine, on June 12, 2012, Mr. Bush's 88th birthday. (Associated Press)
The HBO show "Game of Thrones," which stars Emmy-winner Peter Dinklage, has been renewed for a third season, the network said Tuesday. The premiere last week of the show's second season pulled 3.9 million viewers. (HBO via DAPD)
In this undated image provided by HBO, John Ortiz appears in a scene from the HBO original series "Luck." The HBO TV channel ended the racing series "Luck" after three horses used in the realistic production were injured and euthanized over a period stretching from 2010 to last week. (AP Photo/HBO, Gusmano Cesaretti)
In this image released by HBO, horses race in a scene from the HBO original series "Luck." HBO says a horse used for the racetrack drama "Luck," was euthanized after suffering an injury. The animal was being led to a Los Angeles-area racetrack stable when it reared and fell back Tuesday morning, suffering a head injury, according to HBO. The horse was euthanized at the Santa Anita Park racetrack in Arcadia, where "Luck" is filming its second season. It's the third horse death to occur during production of the series starring Dustin Hoffman and Nick Nolte. (AP Photo/HBO, Gusmano Cesaretti)
In this undated image released by HBO, Julianne Moore portrays Sarah Palin, left, and Woody Harrelson portrays campaign strategist Steve Schmidt in a scene from "Game Change," a film about Palin and the 2008 presidential race, premiering Saturday, March 10, at 9 p.m. on HBO. (AP Photo/HBO, Phil Caruso)
"The Undefeated", a two-hour documentary on Sarah Palin's political career, will air March 11 on the Reelz Network, one day after HBO debuts "Game Change," a film dramatizing the 2008 presidential election.
** FILE ** Nick Nolte stars with Dustin Hoffman in "Luck." HBO is defending its treatment of horses used in the racetrack drama after two of the animals died during production. (HBO via Associated Press)
In this image released by HBO, Steve Buscemi, center, is shown in a scene from the HBO series, "Boardwalk Empire." The show was nominated for a Golden Globe award for best TV drama series. Buscemi was also nominated for best actor in a TV drama series. (AP Photo/HBO, Macall B. Polay)
The HBO drama "Boardwalk Empire," which stars an ensemble cast featuring Steve Buscemi and Paz de la Huerta, is one of President Obama's favorite TV shows. First lady Michelle Obama and the couple's two daughters, meanwhile, enjoy ABC's "Modern Family." (HBO via Associated Press)
"True Blood" creator Alan Ball said he is negotiating to work on a fifth season of the HBO hit but has hinted that the show could continue without him after that. "I don't believe 'True Blood' is 100 percent dependent on my participation," Mr. Ball said in an interview with Rolling Stone.