My dish cable comes into my house runs to my receiver. From there it goes to my living room tv, then has some kind of box off the receiver that then runs to a 3 way splitter, that then runs a cable to my kitchen. I have had this set up for a couple years. My son got a new tv for christmas and wants cable in his room. I thought I could just add a cable off the splinter to his room and just use the same receiver to just watch the same on both tv's. But the tv in my son's room will not work. I have checked all the spots on the splinter to make sure they work and they do, and I've checked the cable to his room and it works. I also moved his tv to the kitchen to make sure it would work. The tv hooked up in the kitchen and worked just fine. I even unhooked the kitchen completely with the idea of just running the cable to my son's room but it still didn't work. Even, at that if I unhook my kitchen I loose compelete connection even in my living room. I hope I am explaining this good enough but I need help.