I tend to agree with what's been said already.
I remember back in the early '60s when the world was monochrome on the box. Advert breaks were 30 sec. There was not enough time to fetch a sandwich or take any other kind of break.
(Person who goes to the kitchen during adds; commercial traveler)
Recently you can make a sandwich and brew up a cuppa during the ad break. I have timed some to be 4 to 5 minutes.
In the USA during big football matches the game is scheduled around adds. The game stops during ad breaks. Can be interesting in some other sports I assume?
Cheers