Excellent article, and you read my mind as well. I used to mess around a lot with short-wave radios, and figured a way how to unscramble TV images when the "first" cable patent came out back in the early 80's (this was ONTV, and I believe it was just a test prototype model that was to slowly introduce the mass public to the option viewing televised programs via from a Ethernet Feed), I'll probably do an article on ONTV, to put something on the minds of cable users -- just for kicks :D

As a kid I knew the frequency ranges for HF, VHF, and UHF.

One of my favorite channels to watch was Channel 32 WFLD-TV Chicago, and with a short wave radio, I was able to find a set frequency simply by tuning the channel in on Channel 31, but the images who show only in black and white with a slight bit of snow haze (but still view worthy).

I learn the same trick using the shortwave radio on Channel 44 WSNS-TV, which was the frequency gateway to yank in the ONTV cable signal. I'm going to do that article on this one, you got me REALLY thinking on it LOL.

Thanks! :D