Father Ted had wacky slapstick gags just like Mrs Brown's Boys. Better, but not by a long way.
Spaced, Peep Show, early Boosh, Curb, The Office, Partridge. There's your good comedies.
Never found Carell funny in the American Office? I acknowledge it's quite a brash, in your face humour that is juvenile at times, I'm guessing you're not a fan of The Hangover or South Park either?
I hate Nando's. But Anchorman was very funny, as this will probably be. One of those films where you can tell they had tonnes of fun filming it, and it shines through.
Steve Carrell and Will Ferrell are both very naturally funny guys, and to compare either to CBBC's Miranda Hart is like...