Some of us are old enough to remember when the only cartoons on TV were on Saturday mornings. In today's world of cartoons 24/7, the once common term "Saturday Morning Cartoons" is a term no longer valid so no longer used.
Then there are the terms used widely today that didn't exists back then like "blogging", "internet", "webpage", and "cellphone". Using any of these words back in the 70's would have gotten strange looks from the folks in that time. Yet today they are routinely part of everyday conversation.
One term still in use today as it was back then is taking a, "Saturday afternoon nap"....hummm.....not a bad idea.