I have one VIP622 (dual tuner HD/SD) at my home. I need another HD receiver and received 722k. I have one cable coming from my switch (DPP44) to room where 722k wil be installed (same as 622). I want to make sure about installtion part. I guess I need to use dish splitter and connect two cables to two tuners (same as 622). Do I need to change any LNB etc...Dish guy was telling me that I may not get two HD chnnels at the same time on two receivers. That doesn't make sense. is he correct? I have a big dish with 4 lnb (119, 118, 110, 129) and on 622 I get everything including local HD. I am not interested in OTV at all.