Had SKY HD installed downstairs replacing my Sky+, upstairs have a normal sky box, If I install the Sky+ box upstairs and get it paired to the card from the normal box will it work with only the one sat. feed (I know I wont be able to record 2 channels or watch different channel to one recording etc!)?
Asked installer to put a another cable in upstairs while he installed HD but said he didn't have time!

Don't fancy doing it myself as dish on back of house, box upstairs on front so cable has to go over roof & I'm not a great fan of heights

!!