What2Watch Tonight

Tue, September 1

Drunk History

COMEDY, 10:30 pm ET

Comedy Central’s hit series Drunk History is back for a 13-episode Season 3 beginning tonight, as host and director Derek Waters takes viewers on a historical journey to New Jersey. Guest stars in tonight’s episode are Christopher Meloni, Tony Hale, Greg Kinnear, Stephen Merchant, Justin Long and Jason Ritter.

NCIS

CBS, 8:00 pm ET
NCIS

Though CSI has a cyber unit that has fueled its own series, NCIS also is deeply involved in online crime in "The Lost Boys." A case that Gibbs (Mark Harmon) and his team are working goes international with the pursuit of terrorists who recruit new, very young allies via the Internet. The situation becomes potentially more lethal with the villains' purchase of black-market weapons. Guest star Matt Jones returns as Special Agent Ned Dorneget.

America's Got Talent

NBC, 8:00 pm ET
America

The Live Semi-Finals of the competition begin as a dozen of the top 24 acts perform on the stage of New York's Radio City Music Hall for judges Howie Mandel, Mel B., Heidi Klum and Howard Stern as they try to clear another hurdle toward that $1 million grand prize. Nick Cannon hosts the new episode "Semi-Finals 1."

Are You Smarter Than a 5th Grader?

FOX, 8:00 pm ET
Are You Smarter Than a 5th Grader?

A paleontologist knows a great deal about what happened on Planet Earth millennia ago, but what about classroom lessons learned during elementary school? A contestant who specializes in that branch of science, as well as a real estate agent, pit their knowledge of subjects ranging from art to geography and math against some real grade-school students in the new episode "Adolfo/Ashley."

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