Also a good example at how technology has made things slower. An analog TV can change channels mid-frame; try that on a digital TV and you're met with a 0.5 to 1 second delay, just like on this site. It's not much, but it adds up.
I remember coming home from school and tuning in to the Disney afternoon. When it was over, there wasn't really anything else on so you turned the TV off and did something else like go outside or do homework (okay, that last one was a lie.) Same thing with Saturday morning cartoons, I think maybe American Gladiator was the last thing a kid would want to watch before noon and again, turn TV off and do something else. Though there was the A-team and MacGyver at some point.
It just that with a limited set of channels, we just watch whatever was most interesting.
With Infinite scrolling you're always hoping for something better that might come.