I have 7 TVs Using a 922 2 722's and 2 211's I am wanting to upgrade to the Wally w/EHDs to get around the DVR fees. I have all ready paid the one time 40$ EHD fee. I own the 922 but don't really care about the 722's or 211's The phone rep said Wally's wont work with a 922 but would with the...