The tvs had a seperate dial for channels over 13.
As I recall, the only channel we ever had that high was PBS. I'm thinking that it actually came in as Channel 24. I still have the antenna tower up outside. It's 60 feet, though I have the segments under the house to make it 90 if I had
really wanted to. We used to have the directional controls hooked directly into the TV itself, so that it would automatically adjust its heading to best receive each channel. All of our channels would come in crystal clear from well over 200 miles away. It probably also helped that we live on top of one of the tallest ridges in the county.
I've been toying with the idea of hooking my router up to the tower, actually. Maybe I could canvas the entire property with wifi then. Of course, I'd need a different antenna. Only the tower itself would really be usable.