Will Ferrell: You're Welcome America - A Final Night With George W. Bush

Naked Brothers Band
8 pm/ET Nickelodeon
They say that breaking up is hard to do. And though they don't write songs about it, finding a new bass player for your band is also difficult. Nat experiences both of those things tonight after Rosalina returns from her cruise. A visit from one of Rosalina's shipmates, a handsome French piano prodigy, spurs her breakup with Nat and causes her to quit the band. Now the guys need to find a new bass player, but Nat isn't quite as ready as the rest of the band to welcome someone new into the fold. —Jennifer Sankowski

Will Ferrell: You're Welcome America A Final Night with George W. Bush
9 pm/ET HBO
George W. Bush may be out of the Oval Office, but that doesn't mean Will Ferrell is through kicking him around just yet. Ferrell's caricature of the 43rd president began during his old SNL days, but now he takes "the Decider" from the White House to the Great White Way in a live performance at New York City's Cort Theatre. Ferrell, aka the Performer, has been doing boffo business on Broadway in a show that touches on Bush's life and career, including his cowboy persona and two terms as Air Force One VIP. —Joe Friedrich

Relative Stranger
9 pm/ET Hallmark
After spending a few years out of the spotlight, Eriq La Salle returns to the small screen in this impressively cast original movie, which also stars Cicely Tyson, Michael Michele and Michael Beach. La Salle plays Walter, a former football star who abandoned his wife, kids and the rest of his family. When he learns that his father has died, he returns home to confront the pain his absence has caused — particularly for his kids — and begins the rocky road to redemption. —Brie Hearn

Into the Abyss
9 pm/ET National Geographic
The Celebes Sea boasts the highest level of biodiversity of marine species on the planet. And that's just in its sunlit shallow waters. In the sea is an underwater gorge that reaches depths of more than 10,000 feet below, and it's never been explored — until now. In this stunning documentary, National Geographic photographer Emory Kristof leads an international team of scientists in search of new life at the very bottom of the sea on the first-ever descent of this mysterious abyss. —Karen Andzejewicz

Saturday Night Live
11:29 pm/ET NBC
Will Tracy get racy? Spicy comic Tracy Morgan is no stranger to 30 Rockefeller Center. The former Saturday Night Live player and star of the saluted sitcom 30 Rock returns to his former digs as host tonight. Here's hoping Morgan will revisit some of his SNL characters, such as ribald rocket man Astronaut Jones, or vacuous animal handler Brian Fellow, who's "not an accredited zoologist, nor does he hold an advanced degree in any of the environmental sciences." On the music stage: Kelly Clarkson, Season 1 winner of American Idol. —Dean Maurer