Critic’s corner: What’s on TV Tuesday night

Christopher Buchanan/Insignia Films

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Constitution USA With Peter Sagal 9 p.m., Channel 2

You’ve probably heard him on NPR’s “Wait Wait … Don’t Tell Me,” where he is endlessly witty. Now you can see him, and his significant eyebrows, on this new four-part series. Sagal takes a cross-country motorcycle trip to explore the contemporary relevance of the Constitution. Among the issues he addresses with the people he meets: same-sex marriage, presidential power, the separation of church and state, medical marijuana, gun control, and health care.

The Mindy Project 9:30 p.m., Fox

Bill Hader returns. So does the funny, I hope.

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