Just had a upgrade from old dish system to new hopper and one wired joey,,,my old setup i used a splitter to run a 3rd tv in bedroom,,with new setup the spliter will not work,,,i have tried hdmi splitter but it refuses to work,,,does the signal that comes out of hdmi outlet allow it to be split,,if so HOW DO I MAKE IT WORK,,,i been pretty good at tech stuff for many years but this one is stumping me,,a coax cable in run to to joey from main satellite box receiver,,,if i try to attach coax directly into tv it ownt work,,only works if i attach to joey and then attch hdmi cable ???What step am i missing...do i need to have a powered splitter,i also tried usng the rca jacks on joey with a rf modulater ,,,it wont work either...hoping to figure it out so i dont have to buy another joey