just watch it from the beginning. youre talking about, what, ~3 hours? get it together man, what else are you doing for 3 hours besides berating people in fantasy football
if it helps at all, the show is a lot like arrested development in that it rewards you for rewatching, as it has a lot of little inside jokes. so it wont be as funny if you pick it up midway through and also gets funnier the more you watch.