TV live signal on android application

[Paulo Coutinho]

Hello, I'm new on android and I'm checking if I can do what I want on android. I'm looking for any way to get the TV broadcast signal into my app. I saw that android has a Camera api to access device cams and I'd like to know if it's possible to "open" a external USB TV Tuner or Video Capture Device by using the Camera API. I'm asking that because I'm also evaluating the Adobe Flash as another option to do what I want and in Flash you can access video capturing devices with its Camera API (of course you have to install its drivers on windows).

Are there "drivers" of such devices for android?
Is there any way to show video from any capturing device?
Is there any way to plug a AV output to a android device?
Is there any other way to do what I want?

Thanks a lot