Schoolhouse Rock, a series of animated educational videos, originally ran from 1973 to 1985 and was re-released from 1993-1995; additional episodes were released direct to video in 1999. Topics included grammar, science, civics, economics, history and mathematics. Which episode tune sticks in your mind? "Conjunction Junction what's your function" or "I'm just a bill, yes, I'm only a bill. Sitting here on Capitol Hill" or how about "Lolly, Lolly, Lolly Get your Adverbs here" Now that those songs are stuck in your head, come on out and get a smiley.