Today on TV

NFL (6:30 p.m., ESPN): Browns at Bills

Big Bang Theory (7 p.m., Ch. 2): Wolowitz thinks he's found the woman of his dreams.

Dancing With the Stars (7 p.m., Ch. 4): The contestants perform.

Chuck (7 p.m., Ch. 5): Jill is jealous of Sarah.

Terminator: The Sarah Connor Chronicles (7 p.m., Ch. 13): Derek and Jesse track a possible Skynet conspirator.

NBA (7 p.m., Ch. 14): Suns at Jazz

Gossip Girl (7 p.m., Ch. 30): Lily mediates for Rufus and Jenny.

How I Met Your Mother (7:30 p.m., Ch. 2): Ted submits a design for the new headquarters of Barney's company.

Two and a Half Men (8 p.m., Ch. 2): Alan tries to punish Jake.

Heroes (8 p.m., Ch. 5): Nathan learns the truth about his father.

Samantha Who? (8:32 p.m., Ch. 4): Sam is jealous when Todd dates Owen's ex.

My Own Worst Enemy (9 p.m., Ch. 5): Edward makes a deal with a KGB agent