I used to get up every Saturday morning in time for the 6:30 AM Captain Kangaroo and watch cartoons until 1:00 PM! Different stations started shows at different times, but they pretty much all aired the same cartoons. One started Captain Kangaroo at 7:00 AM. Fat Albert was sometimes aired in the mornings and sometimes in the 12:00 or 12:30 slot, depending on the station.

Boomerang does a good job of getting a variety of cartoons, but they have some key gaps. I'm still thankful they aired a couple episodes of Wildfire, though. ^_^