I ran RG6 quad shield to my garage for 4 tvs. 75ft underground to a 1x4 splitter, homerun cables to 3 tvs, split last one on a 1x2 splitter. DTV came to hookup, added wholehome, ran regular receiver for last tv. He used my home dvr as master. Picture would intermitting drop on each of these tvs. DTV came out and said the cable I used was the problem. I attached the reel I used, Has anyone had this problem before? any help would be appreciated. swm3 lnb.