ah yes, Romper Room, Wonderama ("Kids Are People too" - they filmed an episode at our achool, I think, or had a traveling show), The Magic Garden, Kukla, Fran & Ollie... then the WB and Fox bought up a bunch of indie stations and killed local TV...
As for Mr. Rogers - I still remember when the Oscars did their "those we lost" obituary segment that year and when his face came up on the screen the entire audience got to their feet and applauded en masse. The guy was loved, make no mistake about it...