I need to find a different way to combine dish programming & ota, then send to other rooms via coax. Presently, my dish & ota feeds come into the house separately. They are both amplified separately, then run into a signal combiner, that allows both signals to be run thru a single coax. That is then run to a splitter that feeds 3 tv's. This allows me to watch either the satellite or local programing on any of the tv's. This setup has worked fine for several years. Recently, I have been getting a rolling white (almost transparent) lines in the pictures. This is not a constant problem. It is intermittent. I have tried to switch the splitter, & the signal combiner with no difference. I am next going to try to switch out the satellite amplifier & possibly the dish receiver. When everything is functional, the picture quality is as good via the coax as it is from the composite input. Is there any type of simple distribution setup that will the separate input of satellite & ota signals, combine them & then distribute thru a coax to be used with older tv's?