What to watch this weekend: ‘Saturday Night Live’, ‘It’s a Wonderful Life’

Naturally, there’s a lot of Christmas specials this weekend. But more importantly, Jimmy Fallon and Justin Timberlake host SNL. And they’re awesome.

It’s a Wonderful Life @ 8pm Friday, NBC: Best Christmas move ever? Best Christmas movie ever.

Comedy Bang! Bang! @ 10pm Friday, IFC: Zach Galifianakis stops by and well, it’s probably must-see TV.

Saturday Night Live @ 11:30pm, NBC: Jimmy Fallon and Justin Timberlake, together again. YES!

The Sound of Music @ 8pm Sunday, ABC: No this is not live, this is the real deal. This is Julie Andrews and nuns and Austria and you get the idea.

James Gandolfini: Tribute to a Friend @ 8:30pm Sunday, HBO: Gandolfini’s friends and family talk about the late actor in this HBO special.