Ok, getting my 942 installed on the 13th and when added to my new HDTV I will HD finally! I am replacing my 721 and a 301 on another TV. I have a 522 controlling two other tvs. My question is on the second tv on the 522 it is broadcast on channel 73. Is there a way to diplex both the 522 and 942 signals into both second tvs if say you broadcast the 942 signal on say channel 99? Can this be done so both second tvs can access both DVRs? Also should I buy a HDMI cable or is the supplied HDMI DVI cable good?