l Real Housewives of Orange County, Vuzu, 19.30

Lynne’s showing of her cuff line comes to a halt thanks to a fight between Tamra and Gretchen. The camps divide: Tamra unloads her feelings on friend, Vicki, while Gretchen offloads to Jeana and Lynne. Lynne feels pulled in two directions now that she and Tamra are closer. Simon sells a luxury car to Jim and Alexis Bellino and invites them on a double date so Alexis can meet Tamra.

l FBI Files, Crime & Investigation Network, 19.45

In the early 1980s, a pair of serial bank robbers gained a reputation among law enforcement as formidable bandits. The men always took hostages and emptied bank vaults across the Midwest. After they escaped from custody, FBI agents believed they would attempt a grand-scale heist. By surveilling the criminals’ known associates, authorities tried to anticipate the next target.

l Food Network Star, Food Network, 20.10

Upon arriving in the Food Network Kitchens in New York City, the 10 finalists are greeted by celebrity chef Bobby Flay. He tells them they will be catering for a party to celebrate Food Network’s 16th year on the air.

l Unchained Reaction, Discovery HD Showcase, 21.50

Presented by Mythbusters’ Adam Savage and Jamie Hyneman, two teams battle to construct an elaborate chain reaction object using ingenuity, innovation and know-how. It’s the ultimate build-off pressure cooker, where refined mechanical movements, pyrotechnics and large-scale destruction are encouraged.