This is a particularly good season for Carell, as one gets the feeling that Michael is definitely evolving, although he's still the lovable buffoon he's always been. Highlights from the season include his brief love affair with Pam's mom (ewwww), his fear of an insurance agent he's convinced is part of the mob (cause, ya know- he's Italian), and his constant fear of being upstaged by Jim, who's now co-manager at Dunder Miflin.
The rest of the cast also shines, with Rainn Wilson's Dwight being his usual clueless self, with his friendly rivalry with Ed Helms' Andy reaching a climax in an episode where they try to out-favour each other. We also get more evidence of Dwight as a “love-em and leave em” ladies man, where he seduces and quickly discards one pf Pam's bridesmaids at her wedding in Niagra Falls (the same trip that finds poor Andy with a torn ball-sack). Andy also gets a relationship of his own, with the new receptionist Erin, who's just as dim as he is- making them an ideal couple. My two favourite minor characters, Creed, and Toby also get their share of laughs (Michael's intense hatred of Toby gets me every time).
We also get a fun Welcome to Saber corporate video, a digital short , a blooper reel and some promos that ran during the Olympics. My only beef is that the online episodes that ran between the seasons aren't included (they are actually getting a DVD release of their own).