Posted by Lee Gilchrist on October 29, 2001
In Reply to: Poindexter posted by R. Berg on October 24, 2001
In the old Rocky and Bulwinkle (Bulwinkel?) TV cartoon, Mr. Peabody (a time-traveling dog/scientist) had a boy named Poindexter who wore large glasses and was smart of course. It's probably not the origin of the use for a "brainiac" -- but it may have helped to popularize it.
By the way, the original "Brainac" was one of Superman's alien nemesis and the original owner of the shrunken Krypton city of Kandor.