Will Television be a thing of the past ?

Disagree about radio careers.

Sure the trend is multi-station corporate playlists, but that's not the case where I live.

Plenty of live DJ's and even though I'm between 2 major markets and get double the normal stations, there's no shared content, even between stations owned by the same parent.

Oddly, about 10 years ago, they tried that with the "Bob and Tom" morning show.
Exact same show on 2 different stations.
Except- one was a classic rock station and the other was a country station!
In between the talk, the music was totally different.
I'd have hated to be the PD or whoever had to figure out what song combinations took exactly the same time.

That didn't last too long.

EDIT- maybe it was "John Boy and Billy" now I don't remember who it actually was but I will never forget that it was different music formats with the same talk show.