Pirate Master (7 p.m., Ch. 2): Another contestant is eliminated.

Ugly Betty (7 p.m., Ch. 4): The assistants battle over swag. (R)

The Office (7, 7:41 and 8:25 p.m., Ch. 5): Back-to-back-to-back extended episodes. (R)

Are You Smarter Than a 5th Grader? (7 p.m., Ch. 13): Jeff Foxworthy hosts.

CSI (8 p.m., Ch. 2): The first of the miniature killer's crimes is committed, leading to a seasonlong storyline that resulted in season-ending cliffhanger. (R)

Grey's Anatomy (8 and 9 p.m., Ch. 4): A pair of repeats.

So You Think You Can Dance (8 p.m., Ch. 13): Two dancers are eliminated.

Supernatural (8 p.m., Ch. 30): Linda Blair ("The Exorcist") guest stars as a detective in this tale of demonic possession. (R)

Studio 60 (9 p.m., Ch. 5): The three-episode story arc that shows us why Matt and Danny were fired from the show concludes.