So I've confirmed that iTunes does in fact sell the censored version of Family Guy (haven't confirmed the rest, but they're most likely likewise censored). In the episode "Road to the Multiverse" on iTunes Stewie & Brian are in a political cartoon universe and Brian is agreeing with some over the top liberal cartoon and Stewie tell hims to shut the ******* up. On the DVD it's not bleeped out while on iTunes it is.
It's a shame because iTunes is the only place to get these shows in HD, but I don't wanna watch them with those annoying bleeps.