11:30 a.m. on 10, ‘‘NASCAR Racing’’ — NASCAR Sprint Cup drivers roll the dice today in Sin City for the Kobalt Tools 400. Brad Keselowski, Jimmie Johnson, Denny Hamlin, Kasey Kahne, Clint Bowyer and other drivers will try their luck on Las Vegas Motor Speedway’s 1.5-mile D-shaped oval. Tony Stewart won this race a year ago, making a three-wide pass on a late restart and holding off Jimmie Johnson for his first victory of 2012.
8 p.m. on HIST, ‘‘The Bible’’ — The reign of King David — including the events leading up to it and those that followed — are the focus of the new episode ‘‘Homeland; Kingdom.’’ They include Joshua’s conquest of Jericho, Delilah’s betrayal of Samson, David’s defeat of Goliath, his affair with Bathsheba and the ascent of his son Solomon to the throne. Keith David narrates.
9 p.m. on 2, 9, ‘‘Revenge’’ — As the Hamptons community mourns the loss of one of its own, Emily’s (Emily VanCamp) commitment to seeking justice and obtaining revenge is strengthened in the new episode ‘‘Retribution.’’ Madeleine Stowe, Gabriel Mann and Henry Czerny also star.
10 p.m. on HIST, ‘‘Vikings’’ - Ragnar (Travis Fimmel) assembles a crew of brave souls willing to risk their lives for a voyage into the unknown West. Haraldson’s (Gabriel Byrne) paranoia intensifies as he realizes how difficult it is to trust anyone in the new episode ‘‘Wrath of the Northmen.’’ Gustaf Skarsgard, Katheryn Winnick and Jessalyn Gilsig also star.
10 p.m. on LIFE, ‘‘The Client List’’ — After her estranged husband, Kyle (Brian Hallisay), walks back into her life, Riley (Jennifer Love Hewitt) is torn between her conflicted feelings for him and the romantic inclinations she has developed for his brother Evan (Colin Egglesfield). Riley also takes on a larger role at the spa, and the added power and responsibility equate with new threats and deeper trust issues.
10:01 p.m. on 2, 9, ‘‘Red Widow’’ — Marta (Radha Mitchell) must think on her feet when critical details of her drug-smuggling assignment change at the last minute, and she’s actually surprised by how well she pulls it off. Marta’s children are inadvertently caught up in the FBI’s investigation of her, and Boris (Jakob Salvati) has a flashback to his father’s death in the new episode ‘‘The Consignment.’’