American Idol: Viewers' votes select the first set of finalists and the remaining hopefuls perform for the judges in this new episode (8 p.m. Fox).
When Vacations Attack: The series depicting holiday nightmares returns for a new season (8 p.m. Travel).
Rob: Rob's (Rob Schneider) dad (Fred Willard) meets Maggie's (Claudia Bassols) family in the season finale (8:30 p.m. CBS).
Up All Night: Ava's (Maya Rudolph) television show's new owner (Eve Best) is something of a hero to Ava and Reagan (Christina Applegate), but her right-hand man (Steven Pasquale), not so much, in this new episode (9:30 p.m. NBC).
Awake: In this surreal new crime drama series, Michael Britten (Jason Isaacs), a police detective, awakens after a car accident to find himself inhabiting two different realities. In one, his wife (Laura Allen) died in the crash, but his son (Dylan Minnette) lived; in the other, she's alive, and the boy is dead. Wilmer Valderrama, Steve Harris and Cherry Jones also star (10 p.m. NBC).