Here is the run of 2008 and 2009's PG-Porn along with the IGN and uncensored episodes (which you may need to be logged into YouTube for) along with selected YouTube behind-the-scenes from James's Channel and from Spike's PG-Porn behind-the-scenes tab. I did the titles on all of them except for High Poon.
These are the ones that were filtered through Spike's censors, but there are some great episodes here like the one with Alan Tudyk in High Poon (another favorite).
PG PORN: Nailing Your Wife
Helpful Bus (Censored Version)
The IGN run. These were two episodes that started after the premiere of Nailing Your Wife, but before they started to air on Spike. A Very Peanus Christmas is probably absolute favorite of the bunch. I love them all, but I dig Christmas the most.
The Uncensored Episodes:
You may have to sign in to YouTube to watch the uncensored episodes. Otherwise, you've already seen Helpful Bus above with some low-calorie censorship.
This was not only censored to shit, but was also taken down from Spike.com. I think James made the choice to take it down rather than to have it chopped up.
Behind the Scenes from James's Channel:
James Gunn and Michael Rosenbaum
James Gunn and Michael Rosenbaum's Horsecock
On the set of Helpful Bus
Aria Giovanni watches herself on PG-Porn
Behind the Scenes from Spike.com: