Honestly why wouldn't they connect to for example a cell phone tower or wifi hotspot ex xfinity wifi to download ads? Just pay whomever happens to ferry the ad

Honestly why wouldn't they connect to for example a cell phone tower or wifi hotspot ex xfinity wifi to download ads? Just pay whomever happens to ferry the ad to your TV a percentage of the take. Seems like this may well not be the case NOW but if I were planning to use a device for 10 years then a software updating adding this feature seems like a distinct possibility.