Its possibly something you dont have stateside Bob.
We currently have 4 TV broadcast formats in the UK.
Whichever type you receive, or should I say if you receive any of these broadcasts then you have to pay a TV licence fee.
A colour TV Licence costs £135.50 and a black and white licence costs £45.50 per year.
The original free (TV licence still required) analogue terrestrial broadcasts that most of the UK can get that includes BBC1 and BBC2 (non commercial channels) ITV 1, C4 and C5 which are commercial channels.
Some parts of the UK cant get C5.
Starting in 2008 and finishing in 2012 all the analogue TV broadcasts will be switched off.
We then get the option of digital TV services from Cable or Satellite which we can subscribe to for various packages that cover the 5 channels already mentioned plus a selection of others channels.
You can still get the BBC and ITV channels through satellite if you have the correct equipment but dont subscribe but most of the FTA ones are the shopping, god, asian or other crappy channels.
Freeview is a free digital terrestrial broadcast that only requires either a TV with a digital tuner built in or a set top box that can cost from around £30 and apart from the TV licence fee doesnt cost anything to watch.
This has the 5 main channels plus another 40+ radio and TV channels of various quality of content with the option of subscribing to a few more channels for a similar but much smaller choice to the cable and satellite packages.
The more channels available then the less advertising revenue is avaliable per channel.
I believe that this has led to the falling in standards of TV programmes over the years.
Thats why we now get so many "reality" shows, soaps and quiz shows instead of the higher cost decent programmes that we used to get when we only had two or three channels
The only viable way to get another TV system going would be via the internet but unless they offered different content to the ones already available for free then I cant see it taking off.