I have a genie HR44 and want to hook up 4 TVs to it. 1 is inside and 3 are in various locations outside. Right now I have the indoor tv hooked to the genie with a HMDI cable and the closest outside one is connected with a RF modulater taking the coax through the wall to that tv and the other 2 outside are hooked together with splitters and coax cable. When you change the channel inside the outside tv’s give an error about not having HD cables hooked up etc. My question is can I hook up the outside tv’s to get HD? Is there any converter or connector that will allow that?