10. 'Head of the Class'
For honor students of a certain age, Head of the Class wasn't a sitcom — it was the Bible. Its classroom full of gifted high-school students helmed by a sardonic Boomer history teacher (played by Johnny Fever himself, Howard Hesseman) was its own private brainiacs-only world. The edgy bad boy, the artsy dream girl, the future CEO, the full-fledged geek, the wiseass computer wiz — these were thrillingly familiar archetypes to anyone who spent their school days sorted into the smart-kids track. Bonus: costar Dan Schneider (aka Dennis Blunden) went on to shape another generation's TV-school experience as the creator of tween-targeted Nickelodeon sitcoms like iCarly and Victorious.