The Late Show with Stephen Colbert (11:35, CBS) – Guests for the very first episode of Colbert’s show include George Clooney and Jeb Bush. Jon Batiste and Stay Human perform.
Also on tonight . . .
In Their Own Words: Muhammad Ali (8 p.m., UNC-TV) – This profile of Muhammad Ali includes his boxing successes, his conversion to Islam, his Parkinson’s disease and his re-emergence at the Atlanta Olympic Games.
Zoo (9 p.m., CBS) – Two new back-to-back episodes tonight. First, a run-in with rebels in Zambia leaves Jackson injured. At 10, Jamie and Mitch try to formulate a cure.
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Playing House (10 p.m., USA) – Two new episodes close out the second season. In the finale, Maggie surprises Emma with concert tickets.
Drunk History (10:30 p.m., Comedy Central) – In a Miami-based episode, stories about Clark Gable joining the Air Force during WWII and Griselda Blanco taking over the city’s cocaine trade.