TV used to be free over the air. Commercials were in-show. Often done buy the hosts themselves talking up a product. Pretty much exactly like YouTube and podcasts do now.
Then cable was invented and they charged for it. But commercials never went away.
Amazon Will Inject Ads Into Prime Video Starting Jan. 29th (gizmodo.com)
Admirals in The Orville are much better than Star Trek admirals. (startrek.website)
I finished watching The Orville, it was a masterpiece from the hands of Seth Macfarlane....