Not sure if you ever heard of the old time radio show, the Whistler? Turns out they made it in to a TV show for awhile.
This episode had Lon Chaney Jr. in it, the Wolfman to many of us who grew up watching black and white movies.
Here is a link, if you are interested, sorry I spoiled it...
https://youtu.be/YPw4H_dcfXI
It's only 26 minutes. Imagine a time when a half hour show actually had 26 minutes of show after the ads were removed. You'd be lucky to get that in an hour show today.