The latest episode of "Always Sunny in Philadelphia" was one of the best this season. This show really deserves the cult following it has, and if you don't know, now you know!
Mac takes us on a journey back through the past to find out why he got fat, and all I'll say is it's a classic "Sunny" story. This episode was silly, funny, and as always, a little outrageous.
Watch clips and more here.
What did you think of this episode? Tweet me!