No, you cannot buy a new receiver and swap your old card into it. Yes, you can buy a new receiver and buy a new card for it (something like $20). Beware of buying receivers on ebay and anywhere.

I have nearly the exact same setup and my receiver sends DD audio out on both the HDMI and the optical output.<BR><BR>I have the new HD-10 Direct TV HD receiver hooked up to a JVC HD TV using HDMI ...

The non-HD, non-wide-screen 20.1-inch TV isn't designed to anchor a home-theater system; rather, it's intended for the kitchens, bedrooms, and dens of DirecTV households.