The man's teeth and groovy brown '70s turtlenecks were an integral part of my childhood watching PBS.
I think there may have even been a scientific paper on the topology of his sweater--or was it on the filament/ gravity lens potential of Asimov's sideburns...I forget.
There are FIVE pocket protectors!
Ted Knight voice on...
Nerd of the week #2, from the League of Super-Hero rejects:
BRAIN-O! The Worlds Smartest Moron
The square of the hypotenussse is the sum of the other two....uhh...George Washington.