I had my 722k hooked up to a second tv with a RG6 cable and got a perfect SD picture on the 2nd tv. When I switched to the HWS there is no RG6 out on the HWS. The tech hooked up a RF modulator to the HWS and connected my RG6 cable to it. The picture is very bad on the 2nd tv.Lots of static lines. I switched to a new RF modulator, but the picture is exactly the same. What can I try now? I do not want a joey, since I only watch the same program on the 2nd tv, plus I can't afford the $7.