Sophia Bush and Hilarie Burton, One Tree Hill Sophia Bush and Hilarie Burton, One Tree Hill

One Tree Hill
9 pm/ET CW
This show often attracts top music acts, especially for their episodes in which Peyton stages concerts. Tonight she organizes a USO show with headliners Angels and Airwaves and Kate Voegele (reprising her role as Mia). Haley is set to perform as well, except she's hit with a case of stage fright. Off stage, Lucas tries to come to terms with Peyton and Julian's romantic past, while Millicent confronts Mouth about his relationship with Gigi. — Jennifer Sankowski

For full episodes of One Tree Hill, visit our Online Video Guide.

Gossip Girl
8 pm/ET CW
It's almost like it's the 1980s all over again when Cyndi Lauper and The Princess Bride star Wallace Shawn appear in tonight's episode! Lauper appears as herself (it turns out Blair is a fan), and Shawn appears as Eleanor's new beau, Cyrus Rose. (Blair's not a fan of his, so she tries to break them up.) Elsewhere, Jenny moves in with Agnes, and Dan starts hanging around the Bass family in order to get dirt on Bart and write an exposé on him. Way to get on Chuck's bad side yet again, Dan. — Jennifer Sankowski

For full episodes of Gossip Girl, visit our Online Video Guide.

8 pm/ET NBC
Chuck confronts the "ex factor" tonight. Jordana Brewster begins a multi-episode guest-star stint as Jill, Chuck's former flame and college sweetie, a beauty who broke his heart and derailed his life. Chuck runs into her by chance and, of course, embellishes his status in life to impress her. But Chuck quickly springs into spy mode upon discovering that her research-scientist boss may be involved in the development of a bioweapon. Meanwhile, Buy More's efficiency expert (Tony Hale) enforces a mandatory CPR course, conducted by none other than Captain Awesome himself. — Dean Maurer

For full episodes of Chuck, visit our Online Video Guide.

Inside the Actors Studio
8 pm/ET Bravo
The enduring, endearing interview series salutes its 200th episode by pulling a nifty little switcheroo: Longtime host James Lipton sits squarely in the hot seat as a guest for the very first time. It's indeed Chappelle's show, with comic-actor Dave Chappelle serving as substitute host. It's a loving retrospective of sorts, illuminated by montages of guests' favorite curse words and dance moves as well as Lipton's reflections on the show's memorable moments and classic interviews, including chats with Tom Hanks, Sally Field and Mike Myers. — Dean Maurer

For full episodes of Inside the Actors Studio, visit our Online Video Guide.

9 pm/ET NBC
Arthur Petrelli has certainly been busy over the past few weeks: building an army, wreaking havoc with his sons, ordering murders, etc. But what led him to his current mission? Tonight we find out as Hiro takes a look into the past and discovers what drove the Petrelli patriarch down the dark path leading to Pinehurst. — Brie Hearn

For full episodes of Heroes, visit our Online Video Guide.