Who Do You Think You Are (8pm, NBC) - Susan Sarandon investigates her family tree and learns something interesting about her enigmatic grandmother.
Glee (9pm, Fox) - If you missed the last five minutes of "Glee's" Madonna episode on Tuesday because "American Idol" ran late (again), it's rerunning tonight.
Jamie Oliver's Food Revolution (9pm, ABC) - In the series finale, Jamie returns to Huntington to see that most people have reverted back to unhealthy eating habits, so he does what anyone else would do. He calls Rascal Flatts.
Bang For Your Buck (9:30pm, HGTV) - Designer Vern Yip evaluates kitchens in Raleigh and Cary.
Real Time with Bill Maher (10pm, HBO) - If you don't know Jack, tune in tonight for Bill Maher's interview with the real Jack Kevorkian. Other guests include Richard Clarke and Susan Eisenhower.
Party Down (10pm, Starz) - The second season premieres with Henry as the team leader at the catering company. Jane Lynch has departed (for "Glee") but Megan Mullally ("Will & Grace") joins the cast.