First off...I am new here and I hope this is a appropriate question for this forum.
the others didn't seem to be appropriate.

My video card has RCA out.
My Sound card (5.1 btw) has mini-jack out.
The computer is 50 feet from the HDTV.
Can I combine Standard RCA yellow/red/white
and send the signal to my TV over RG6?

The tv's stereo tuner should be abl to understand the input I would believe.

Radio Shack has a F-type(RG6) to RCA adapter but that would only carry video.
Is there and adapter to combine the 3 signal to RG6?

I'd like to be able to do this with out buying $100s in equipment and spend the $$ on wireless Media Center PC in the future.

Thanks everyone.

( I have stereo mini-jack to RCA (red/white) cord if it would be needed.)