Now that we’ve got a full week of new TV under our belts, it’s time to start up the What’s On column again.

Chuck – Chuck Versus The Helicopter – NBC – 8/7c

As Chuck continues to come to grips with his new spying life, tension builds between his recently appointed partners, and he must decide which of them to trust.

Prison Break – Call Waiting – FOX – 8/7c

Someone slides an envelope containing a photo of Sara and LJ under the door of Linc’s hotel room. It might contain clues to their whereabouts. The Company Operative (Jodi Lyn O’Keefe) in Panama City might help, too, but Linc must persuade her it’s in her best interest to do so. And at Sona, Michael gets to know Whistler (Chris Vance); Lechero begins to lose confidence in his ability to shape events; and Mahone, who is in increasing need of his medications, meets the lawyer who’ll defend him.

Heroes – Lizards – NBC – 9/8c

Claire’s efforts to keep her abilities hidden are compromised by someone with a secret of his own; Suresh is ordered to look for the Haitian; Niki and Micah leave Las Vegas; Matt makes a surprising request for help as he investigates the attacks on people with abilities.