If You're Not in the Obit, Eat Breakfast (HBO)

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What's the secret to living into your 90s--and loving every minute of it? In this documentary, writer-comedian Carl Reiner tracks down several celebrated nonagenarians, and a few others over 100, to show how the twilight years can truly be the happiest and most rewarding.

Starring: Carl Reiner, Tony Bennett, Mel Brooks, Dan Buettner, Kirk Douglas, Fyvush Finkel, Irving Fields, Stan Harper, Norman Lear, Stan Lee, Patricia Morison, Jerry Seinfeld, George Shapiro, Dick Van Dyke, Arlene Van Dyke, Betty White