Start with wikipedia:
http://en.wikipedia.org/wiki/Cable_television
http://en.wikipedia.org/wiki/Satellite_television
How are you hoping to fund your channel?
Unless you have at the very least a few tens of million dollars in start-up funding you haven't got a hope in hell. Have you any idea how much it costs to manufacture a set top box, or even how much you'd have to pay a local TV station to broadcast your channel?
Start small, with something like YouTube and see how you go.
Good luck and let us know how you get on!
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Sent from my iPad Nano.
