hi guys i am thinking about getting sky back n aug if there is no fix 4 the boxs r getting a arnet750 the question i would like 2 no is i have a sky dish and a grundig box i watch fta channels on. if i get the sports back and buy a 4way lnb and 3 more boxs can i use the card in the first box 2 send the singnal 2 the others boxs the same as multy room?