PBS has auto-tuned Mr. Rogers -- and I actually kind of like it!
True story -- the first time I ever saw Mr. Rogers Neighborhood, I was in my late twenties, when I stumbled into my living room on a Saturday morning, somewhat bleary eyed from a, shall we say, active night before. I remember staring at the TV screen watching this guy in a sweater talking really slowly, and wondering if he was on drugs or if mine hadn't worn off yet.
Seriously -- it took me half an hour before I finally realized it was a kids show.[h/t Geor3ge]