Is there a way for my Vizio Co-Star to control my Channel Master CM-7000PAL OTA DVR? I have searched Google for threads, but not finding any answers. A couple of threads seems to indicate that this is not possible. When I try to setup the CM-7000PAL with the Vizio Co-Star, I get to the point where the Co-Star asks for a 4 digit code to enter for the Media Internet Box, but nothing works. Would appreciate any ideas.