Monday Night Football (6:30 p.m., ESPN): Dolphins at Jets

How I Met Your Mother (7 p.m., Ch. 2): Ted's friends get involved when he doesn't do a background check on his new lady friend.

Dancing With the Stars (7 p.m., Ch. 4): The competition continues.

The Sing-Off (7 p.m., Ch. 5): The competition continues.

Terra Nova (7 p.m., Ch. 13): Jim and Shannon aren't sure if they can trust an orphan who seeks asylum at the colony.

Gossip Girl (7 p.m., The CW): Dan brings Serena, Blair, Nate, Chuck, Rufus and Lily together to talk about his book.

2 Broke Girls (7:30 p.m., Ch. 2): Max and Caroline throw a 1990s-theme party.

Two and a Half Men (8 p.m., Ch. 2): Alan tries to come to terms with Lyndsey's past.

House (8 p.m., Ch. 13): Thirteen's pursuit of happiness is hampered by feelings of guilt.

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Hart of Dixie (8 p.m., The CW): The heat wave in Bluebell causes everyone to lose their inhibitions.

Mike & Molly (8:30 p.m., Ch. 2): Molly wants to save money for their wedding, but Mike is tempted into buying Vince's car.

Hawaii Five-0 (9 p.m., Ch. 2): Chin Ho reconnects with his ex-fiance.

Castle (9 p.m., Ch. 4): a valuable sculpture is stolen and someone is murdered.

Craft in America (9 p.m., Ch. 7): Four families of craft artists include father and son glass artists in Seattle and an Oklahoma bootmaker who inspires her daughters.