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In the first-season finale of Up All Night (8:30 p.m., NBC/Ch. 5), we're going to see some flashbacks. We're going to learn more about Reagan (Christina Applegate) and Chris' (Will Arnett) history with one another.

Reagan is going to lose her wedding ring.

I wasn't crazy about this show when it premiered, but it's sort of grown on me. The ratings haven't been great, but they've been pretty much where everything else on NBC is.

We don't know if there will be a second season yet. But if I had to guess, I'd guess there will.

Elsewhere on TV ...

Missing (7 p.m., ABC/Ch. 4): Michael plans an escape.

Community (7 p.m., NBC/Ch. 5): Britta wants her friends to keep her away from her ex.

American Idol (7 p.m., Fox/Ch. 13): Another hopeful is voted off.

30 Rock (7:30 p.m., NBC/Ch. 5): Liz encourages Jack to make amends with his ailing mother.

Grey's Anatomy (8 p.m., ABC/Ch. 4): Cristina wants Owen to tell her all the details of his affair; Mark takes over as chief for a day.

The Office (8 p.m., NBC/Ch. 5): Robert forces the staff to throw a welcome party for Nellie.

Touch (8 p.m., Fox/Ch. 13): Rick gets involved in a woman's quest for vengeance.

Up All Night (8:30 p.m., NBC/Ch. 5): In the season finale, Reagan loses her wedding ring.

Scandal (9 p.m., ABC/Ch. 4): Olivia tries to protect a new client who's under investigation.

Awake (9 p.m., NBC/Ch. 5): Britten's interest in a case he was investigating before the accident worries Capt. Harper.