I am a paid subscriber to comcast/xfinity. I am interested in knowing can I buy a dreambox DM500c and use it in place of my cablebox? The reason I am asking is so that I won't have to lease boxes from comcast which run $7.99 a month.

I know I am allowed to get a free few cablecards and I wondered is it possible to use the dreambox here in the U.S.A.?