All in

Discovery Channel hasn't given up on sharks, but the closest that tonight's featured species comes to water is a vodka tonic. The cable network presents three straight hours of poker documentaries: "Hustling the House," which provides tips on turning the deck in your favor; "Casino Secrets," a look at the hidden world of high rollers, and "Underground Poker," featuring Phil Laak and Antonio Esfandiari, two of the most feared players on the circuit. 7 p.m., Discovery

Good shot

Jenny McCarthy probably won't be rooting for "Vaccines: Calling the Shots," a new edition of "Nova" that debunks theories that vaccinations are bad for children. The documentary argues just the opposite and warns of the risks that come with forgoing immunization. 8 p.m., TPT, Ch. 2

Let the games begin

Are you ready for some Thursday night football? CBS wants to make sure that you are with "Under the Lights," a preview in which network stars including Mark Harmon and Tom Selleck recall their favorite moments from prime-time games. The first game Thursday will feature the new opener: Jay-Z and Rihanna performing "Run This Town." 8 p.m., WCCO, Ch. 4

Neal Justin