TV picks for March 7-8:  "SNL," Leonard Nimoy," "The Walking Dead"

Thor's roar

Being the Sexiest Man Alive doesn't guarantee Chris Hemsworth can get laughs when he hosts "Saturday Night Live," but it does strongly suggest there will be at least one scene where the actor has to take off his shirt. The Zac Brown Band provides the tunes. 10:29 p.m. Saturday, KARE, Ch. 11

Live long and prosper

There's no better way to celebrate the late Leonard Nimoy than by watching "Star Trek II: The Wrath of Khan," quite simply one of the best sci-fi films ever made. Nimoy's Mr. Spock is heartbreaking as he says goodbye to his beloved friends. 7 p.m. Sunday, VH1 Classic

Welcome to the neighborhood

They've survived fires, cannibalism and hundreds of zombies. But can the gang from "The Walking Dead" put up with (gasp!) suburbia? That seems to be the direction we're heading in what's been a strong batch of recent episodes. We can't wait to see Daryl Dixon mow a lawn. 8 p.m. Sunday, AMC

Neal Justin