7 home premium 64 bit card recomendation wanted

I have the above system. I need to display from my computer onto two tvs.
One has rca and s video in the other only has a video in. This is for movie watching.
I prever to watch the movies on the tv screens and still have my computer to browse.

In the past on xp my problem was what ever was on the computer was on the tvs. So i had to just watch the flick. I want to have them independant and since getting 7 i can't do it.

cards on xp were 32 bit, my new windows is 64

Thanks for your time and attention

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