Hello. Later this week I'm getting a Dish811 installed. I have a ProScan TV which has the HD15 type connector for HD signals. My old 6000 receiver had this connection, but the new 811 does not. Does someone know if I can use a cable that has an HD15 end and a RCA composite video end. I have also seen some cables that are HD15/DVI-A. If anyone can steer me in the right direction, that would be great.