SERIES90210: Liam, Dixon and Ivy (Matt Lanter, Tristan Wilds, guest star Gillian Zinser) plan to confront Naomi (AnnaLynne McCord) at the horse races in this new episode (8 p.m. CW).
So You Think You Can Dance: The top 10 contestants perform (8 p.m. Fox).
Melrose Place: Amanda (Heather Locklear) moves into the penthouse formerly occupied by Sydney (Laura Leighton) and takes a very special interest in David (Shaun Sipos), who's growing closer to Lauren (Stephanie Jacobsen), in this new episode (9 p.m. CW)
Invitation Only: "American Idol's" Carrie Underwood performs for fans in this new installment (9 p.m. CMT).
Dirty Jobs: Host Mike Rowe heads to Alaska to work on a reindeer farm in this new episode (9 p.m. Discovery).
The Best Thing I Ever Ate: The network's culinary stars recall their favorite holiday dishes (9 p.m. Food).
Sons of Anarchy: This gritty biker drama starring Ron Perlman and Katey Sagal ends its second season (10 p.m. FX).
Sherri: This sitcom starring "The View's' Sherri Shepard presents its first season finale (10 p.m. Lifetime).
The Hills: The reality series signs off for another season, followed by the season finale of "The City" (10 and 10:30 p.m. MTV).