I actually ran into one of these recently. I stayed at an AirBnB which had a super-cheapy small-ish TCL+Roku TV in the living room, with a super-cheapy thin antenna thing. The internet was "acting up" (95% of packets dropped, unusable) so we tried to watch some broadcast TV. You had to either sign in with a Roku account, or as "Guest", but "Guest" had to accept a couple long EULA, and it needed internet for that to work, but the internet was fubar ... I had to use my phone as a hot-spot for the TV to get it to display broadcasts! That left the TV's wifi config such that it definitely won't work for the next person, lol ...