My edit: Director's Cut[]
I was originally going to add that Roger was a part of the college in With Friends Like Steve's but I haven't seen the episode in forever and don't remember if he was a student or not. And wasn't there also another episode where he was a dean? ~Curious Poker Chip 1:54 p.m. March 9th, 2016 (Pacific)
There have been multiple episodes where he has gotten a degree as in "The Adventures of Twill Ongenbone And His Boy Jabari", posed as a professor in "Iced, Iced Babies" or spent a short time in the school as in "With Friends Like Steve's". The question becomes debatable if he really attended classes or did he fake his way though. Since none are provable, it isn't going in unless worded VERY carefully. --Buckimion (talk) 21:58, March 9, 2016 (UTC)