[PhantomGremlin]

Don't know if they still do it in the USA, but about a decade ago Sony XBR TVs were able to OTA update from local PBS stations.

I don't know how useful that was. Most people hook up TVs to cable boxes.

I never hooked up my Sony to an antenna for exactly that reason. There were reports of people being unsatisfied with firmware updates. E.g. the motion interpolation algorithm changed.