When I moved to Sarasota I got a local license for cable tv installation even though I'm a splicer and have no intention of ever getting back to installs. lt's a low voltage license >90v. It costs $14.43 per year and there was no test. Just the government's way to pick up more fee's. I'm not sure but I think the reason we only use 90vac is to keep it legal so we don't need electrical licenses.
This is CABL.com posting #256948. Tiny Link: cabl.co/mbe0u