What’s Worth Watching: Foo Fighters Rock at Austin City Limits

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Austin City Limits, “Foo Fighters” (Saturday, Feb. 7, 8/9c, PBS)

This isn’t the first time the Foo Fighters have rocked the ACL stage, but there’s never a good reason to pass up one of their shows, pre-taped or not. This particular one has a good mix of old Foo staples (“My Hero,” “Best of You,” “Everlong”), covers of other classic rock songs, and tracks from latest album Sonic Highways. Plus, Grohl brings out guitar gods Jimmie Vaughan and Gary Clark, Jr., to join the band for a rip-roaring finale.