Drop Dead Diva (9pm, Lifetime) - The fifth season (remember, this was canceled and then brought back to life!) begins with Jane desperately searching for Owen, who disappeared just before their wedding. And Luke tells Jane that "Old Jane" is back on Earth and could be in anyone's body.
Whodunnit (9pm, ABC) - Wannabe sleuths try to solve a series of fictional murders in this reality-competition show, which begins with the contestants meeting Giles the butler at Rue Manor -- and finding one of them already dead on the floor of the estate. The winner here gets a $250,000 prize.
Crossing Lines (9pm, NBC) - In this new drama pilot, a disabled recluse and former NYPD detective gets an offer from his friend to join the team tracking down an international serial killer. The drama follows the International Criminal Court as they bring global lawbreakers to justice. It's produced in Europe and stars a bunch of fine actors you've probably never heard of. Worth checking out.
Mad Men (10pm, AMC) - It's the Season 6 finale and you know series creator Matthew Weiner isn't letting any clues leak out. The description for the show says, "Don has a problem." Well, tell us something we don't know. Like, are things over between Peggy and Ted? Will Joan finally land Avon? Does Pete now control Bob Benson? Does Megan find out about Sylvia? Do the Chevrolet execs come to New York from Detroit to finish killing Ken (Aaron Staton, pictured here)?
Veep (10pm, HBO) - In the Season 2 finale, Selina and her staff try to cope as the administration goes into full crisis mode.
Devious Maids (10pm, Lifetime) - A new drama in which four maids try to realize their dreams while working for wealthy families in Beverly Hills. In the opener, the ladies turn to one another for support when a fellow maid is murdered during one of the largest society events of the year. Read Adrienne's review of "Devious Maids."
Inside Man (10pm, CNN) - In this new documentary series, Morgan Spurlock takes an insider's look at some of the big issues of our time, like gun culture, education, bankruptcy. In tonight's debut, an illuminating examination of medical marijuana. Adrienne highly recommends it -- here's her review of "Inside Man."
Copper (10pm, BBC America) - The second season begins with Corcoran reporting to a new ward leader and investigating the disappearance of several missing boys. Meanwhile, Freeman is presented with a tough choice that could cause a rift in his marriage, and Maguire awaits his fate in prison.