A program that one watches on television as a masturbatory aid.
Tommy: Richard, were you watching spanktravision?
Michael and Aaron's favorite scrambled late night channel. Usually in the mix is a large blanket to sit under... for "drumming"
Dude, my parents are asleep, turn it to spanktravision... and uh, pass me that blanket would ya? I gotta... practice... ...my drumming."