Need a broadcaster help!

Hi
I want to start broadcasting a few games on justin.tv
I have my TV next to my computer but i don't know what do i need to connect it to my PC and start a broadcasting... my TV has PC input.

if anyone have a tutorial or something that may help me, i' m willing to pay $10 or more depends on the info you have.

I already searched and didn't found nothing that helped me.. i only found how to broadcast from a webcam.. but i want to broadcast from my TV.
example: im watching team1 vs team2 on my TV and i want to broadcast the game live.. no delay or just a few seconds delay.

some folks are using twinhan tv tuner to broadcast some PPV game.I think It's easier to set up that against having to capture the video from your boob tube. I know how to set up a twinhan TV tuner to get paid satellite signal but i don't how to stream it for others.