Mike Sterling's blog, and was just going to offer a link as well. But being the "Simpsons" fanatic that I am, thought that I'd save you the trip and post it here.
This is written by Don Kaplan from The New York Post online edition.
January 25, 2005 -- THE elusive real name of Comic Book Guy will finally be revealed in "Simpsons" episode No. GABF02, Act 1.
The blink-and-you'll-miss-it moment airs in the show after the Super Bowl on Feb. 6.
In the episode, Homer inadvertently performs a wild, crowd-pleasing dance at a local carnival and is hired by several major sports figures to choreograph their victory dances.
He is so successful that he gets tapped to choreograph the Super Bowl halftime show.
Comic Book Guy, the snobbish know-it-all, pops up in the episode clad in a "Nerds do it Rarely" T-shirt. Since the series began in 1991, his real name has never been used.
â€” Don Kaplan