If you try to watch TV past between 2 and 5 AM, the shows are replaced with 30 minute advertisements. Was this normal during the early days of television? | AskHistorians Archive Observer

If you try to watch TV past between 2 and 5 AM, the shows are replaced with 30 minute advertisements. Was this normal during the early days of television?

by fathercthulu

I'm looking at "Try 3 week yoga retreat" and "Perfect Squats!" and "The Best Nonstick Cookware You'll Ever Own From Circulon"

AbsentThatDay

As recently as 35 years ago late at night they would play the national anthem and then broadcast a test image for several hours in the U.S.