Smallville: Clark, Lois, Oliver and Dinah (Tom Welling, Erica Durance, Justin Hartley, Alaina Huffman) all have flashbacks of Chloe (Allison Mack) after being released by the VRA, and Clark and Dinah suspect that Chloe is a traitor in this new episode (8 p.m. KTLA).
Working Class: This new comedy premieres with back-to-back episodes (8 and 8:30 p.m. CMT).
Spartacus: Gods of the Arena: Batiatus (John Hannah) enlists the aid of Lucretia and Gaia (Lucy Lawless, Jaime Murray) and a group of gladiator recruits to put into action a devious plan he has concocted, in this new episode (10 p.m. Starz).
Portlandia: Kyle MacLachlan guest stars in this new episode (10:30 p.m. IFC).
Adventureland: An amusement park is the main backdrop for this 2009 coming-of-age story from director Greg Mottola. Jesse Eisenberg, Kristen Stewart and Ryan Reynolds star as workers with lowly jobs at an amusement park (4 p.m. Showtime).
The Dark Knight: The untimely death of costar Heath Ledger amplified the buzz about this Batman chapter long before the 2008 film opened. Christian Bale reprises his role as the Caped Crusader from “Batman Begins.” Aaron Eckhart and Maggie Gyllenhaal also star (8 p.m. TNT).
Winter X Games: (9 a.m. ESPN2 and 4 p.m. ESPN).
Pro basketball: The Sacramento Kings visit the Lakers (7:30 p.m. FSN).
Tennis: Australian Open, Women's Final (Midnight ESPN2).