Manhattan (9 p.m., WGN) – In the Season 2 finale, a new era is ushered in with the first test of an atomic weapon.
Also on tonight . . .
NCIS (8 p.m., CBS) – Ducky is attacked by a man who claims to have information about his half-brother, who died decades earlier.
The Voice (9 p.m., NBC) – The winner is revealed in the Season 9 finale.
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I Want a Dog For Christmas, Charlie Brown! (9 p.m., ABC) – Lucy and Linus' little brother, ReRun, turns to Snoopy and Spike for holiday cheer.
Chrisley Knows Best (10 p.m., USA) – Todd plans on surprising Savannah by inviting her boyfriend to perform at her graduation party in the Season 3 finale.