Crux , hey thanks for that tip because I'm looking to upgrade my system.I grew up in the SF Bay Area. TVs had only 13 channels in those days. We got the Big 3 networks plus a number of local VHF stations from Oakland and SF so had a total of about 10 or so channels. I hadn't even heard of UHF until later.
In the present, I've cut the cord and just use an antenna and wish I'd done it sooner. Cable is 95% crap anyway. The only cable channel I miss is TCM because I like old movies but there are local stations here that play plenty of them. And, there are places online that offer them free now.
If anyone is thinking of "going antenna" I recommend "Antenna Man" (Tyler) on YouTube. He is a pro antenna installer and has lots of videos on everything about TV antennas. I've followed his recommendations and they've always worked out great.
Antenna Man - Cut The Cord
(I have no connection to him)
Fun fact - my dad was one of the first TV antenna installers in Joliet, Illinois in late 40s. He was always very proud of that job.
( if you remember your history correctly, Joliet is where Elwood picked up his brother from state prison.)