In Texas HS Football is very much the central/highest tier of social status/standing in the community, and the stadiums they play in are bigger than small college stadiums elsewhere (and are televised.)

For football, yes. Although I think it only broadcast on some small cable TV channel that you had to get special access for. There definitely were small media crews at the games (I was in the band; I went to most of them).

One year I was there, the football team made it to the state championship, and got to play in one of the big 70K-seat stadiums the NFL teams use. About half of our small town bought tickets and went to it.

I just checked, looks like mine is one of many schools that streams games live on here: https://www.nfhsnetwork.com/

Really depends on where, and what sport.

If you're in an urban school in a big city, maaayyybe some of the basketball games depending on the specific school. E.g. if your school has people who everyone knows are going into the NBA draft, sometimes the more important games get put on television with commentators.

If you're in a suburban/rural school and it's (American) football or maybe baseball, quite possibly yes as a regular thing. Especially if you're at one of the 50++ high schools that has a 10,000+ capacity stadium.

Edit: yea and as other replier mentioned, there's some regional tendencies too.

That's my personal experience growing up in a suburban area in the South (edit: in the 90s)