INTRODUCTION

Today is the birthday of PBS and also Teachers' Day. For any reader that might not know, PBS (Public Broadcasting Service) is a non-profit American public broadcasting television network headquartered in Arlington, Virginia. It was founded on this date (5 October, 1970), 42 years ago, in 1970, after the termination of its predecessor, National Educational Television (NET).
Watch 1969 Senate Hearings on PBS. See more from Mister Rogers' Neighborhood.
Many Americans share fond memories of watching children's programs like Sesame Street (which began on NET) and Mister Rogers' Neighborhood (which debuted on CBC). If your parents weren't unhealthily preoccupied with celebrity culture or car chases, you may've suffered as they turned commandeered the TV to watch PBS Newshour with it's in-depth coverage of "hard news."

Back in June I hipped readers to the fact that one of the greatest TV shows of all time, 

