Peacock, Paramount+, Hulu, and YouTube TV all have ads or ad plans. Some even just have ads on popular shows no matter the price you pay.

netflix has a plan with ads! https://help.netflix.com/en/node/126831

amazon uses prime video as a hook to get you to sign up for prime membership (which itself has been steadily increasing in price).

i’d be shocked if HBO didn’t introduce an ad-supported price tier at some point in the future. that totally seems like zaslav’s MO.

I’ve started getting ads for other shows and movies on Prime. I’m sure they’ll start putting other ads in front of the actual content too soon