Are You Smarter Than a 5th Grader?

Secret Millionaire: Fox gives Kitchen Nightmares the evening off, partly to air an additional episode of this new reality series in which millionaires go undercover to help people working in underprivileged areas. 7 p.m., KDFW/Channel 4

House: Joy to the World Not known as a nutmeg-y kinda guy, Dr. House sort of gets in the spirit while treating a troubled teen who collapsed during her high school’s Christmas pageant. Also, see him give a patient "an unbelievable holiday gift" while the staff in turn wonders who might have se...

Ugly Betty: Paul McCrane, ER's ill-tempered and ill-fated Dr. Romano, appears in this new episode (let's hope he stays away from helicopters). The episode centers on the late Fey Sommers in two ways: In the trial concerning Fey's murder and in Betty's (America Ferrera) new perfume, which...

Are You Smarter Than a 5th Grader? More to the point, are American Idol alum Kellie Pickler and Access Hollywood's Billy Bush smarter than fifth-graders? They're the latest celebs to test their knowledge in this month's star-infested stunt. According to IMDb, Bush has a bachelor's degr...

Are You Smarter Than a 5th Grader? This two-hour edition, the first in a series of celebrity episodes with stars playing for charity, features Clay Aiken and Regis Philbin. Even if neither is smarter than a fifth-grader, both are certainly richer. 7 p.m., KDFW/Channel 4