I've heard the commentary for the first 7 episodes on the Season 1 DVD so far and love how David X Cohen says this in Fishful of Dollars (not an exact quote, I know)
"We calculated the interest 3 times to make sure we had the right amount, and apparently we did because no one in the newsgroups said it was wrong."
All the commentators got a good laugh out of that, so do you think maybe even Groening and DiMaggio might lurk in this group? We know Cohen does, as he's posted here about 3 times in the past.