yep: satellite TV
A lot of the guys use their big dishes for C-band (3.5 - 4 ghz) and Ku band (11 - 12 ghz) as well.
To see how popular they still are (at least with us), take a look in our C-band forum department for a thread on
Adventures in Dish Hunting 2009.
It's got several hundred posts; just scroll through it and look at the pictures.
All of what we receive is free programming, much of it not intended for direct home viewing, but not scrambled.
There is a pay-service called 4DTV on C-band, and it has its own
forum department, if you are interested.
If you want to get involved, you can purchase a large dish of 8 - 12 feet diameter.
You can have 'em installed, or do it yourself.
Most of us find unused dishes, get them for next to nothing, and install 'em ourselves.
We then refurbish them, outfit 'em with the latest LNBs and motors, and restore them to their former glory. - :up
In the years since those big dishes were the rage (C-band), higher frequency satellites have been deployed. (Ku band)
They can be received on 3' dishes; motors are small, light, 'n cheap.
The small dishes only receive the higher frequencies, while the big dishes can be rigged for both bands.
Our Gold Sponsors (links at the top of every page) provide entire packages for Ku band, including dishes, motors, LNBs, and receivers.
One of those could be a nice introduction package for you, if interested in the satellite hobby.
This forum is full of ideas and helpful people, who'll assist you in getting to know the hobby, and building up or installing just about anything you can imagine. -
edit:
I just read your post.
In the Adventures thread above, I posted some pictures of a small cable head end, with all their solid dishes behind barbed wire.
