Drunk History (10 p.m., Comedy Central) — In an animal rights-themed episode, lawyer Bartholomew Chassenez (Jack McBrayer) defends rats in court, Henry Bergh establishes the ASPCA and a horse that can solve math problems leads to advances in the field of psychology. The episode also features Mae Whitman, Claudia O'Doherty, Paul Scheer, Martin Starr and Samm Levine.
Also on tonight . . .
Civilizations (8 p.m., PBS / UNC-TV) — The Season 1 finale explores art in the age of revolution, war and scientific change.
The Last Defense (10 p.m., ABC) — Twenty one years after being convicted in the murder of her two sons, Darlie Routier’s defense team explores alternative theories and lays out its strategy for a retrial.