Fountain of youth

The title "If You're Not in the Obit, Eat Breakfast" references a Carl Reiner routine, but it's the 95-year-old's continued vitality, not his Catskills-inspired humor, that is celebrated in this youthful documentary. Betty White, Norman Lear and Dick Van Dyke are among the other nonagenarians offering tips on how to live well and prosper beyond one's expected expiration date.

7 p.m., HBO

Hashtag hacks

Social media is an accomplice in the new series "#Murder," the latest entry in TV One's popular True Crime Monday lineup. The first case, involving a lovesick Brooklyn girl who is missing, is riveting enough, but the re-enactments are subpar, with investigators coming across as only slightly more engaging than Siri.

9 p.m., TV One

Don't walk on by

My review of "Unbreakable Kimmy Schmidt" a few weeks ago relied only on the first six episodes of the third season. Now that I've wrapped up the other seven, it's worth noting some terrific guest appearances from Ray Liotta, Tina Fey and Rachel Dratch. Taking the cake — as usual — is Maya Rudolph, who turns in a Dionne Warwick impression that's as hilarious as anything she contributed on "Saturday Night Live." Look for it in Episode 8.

Now streaming on Netflix

Neal Justin