SERIESAmerican Idol: Four contestants are eliminated in this new episode (8 p.m. Fox).
CSI: Crime Scene Investigation: Langston (Laurence Fishburne) and his team investigate when a member of the band Rascal Flatts (guest starring as themselves) is electrocuted by his guitar during a concert, raising the question of whether it was an accident or foul play. Will Patton guest stars in the new episode (9 p.m. CBS).
The Office: Pam's (Jenna Fischer) contractions begin, but she and Jim (John Krasinski) try to wait things out as long as possible so they can have more time at the hospital. Steve Carell, Ellie Kemper, Ed Helms and Brian Baumgartner also star in this special, two-part episode (9 p.m. NBC).
Kitchen Nightmares: Gordon tries to revitalize Lido di Manhattan Beach, an Italian restaurant in Manhattan Beach, whose owner is a business school graduate with no previous experience in the food service industry (9 p.m. Fox).