TV Stream server

Hey

I got a FreeBSD server in my house and I would like to turn it into a tv stream server, so I can watch the TV from any of my computers at home :)

The input is normal old fashion analog tv signal and the output should be in something that works "out-of-the-box" on Mac and Windows. (I guess MPEG something)

What I need help with is to choose the card, so I dont have to hassle with driver problems

And what should I use on the server.. My guesses right now is VLS or MythTV.

Well is there any suggestion to which card and server I should use ?? Thx