Combining cable and tv antenna signals
I have Time Warner cable which does not carry HD signals on their local channels. I want to install a TV antenna to get local channel HD reception on my HDTV. Is there any way to combine the cable & tv antenna signals in the attic, send the combined signal down the coax to the wall jack @ behind the tv and then split the signals to the HD DVR cable box and the tv? If so, what equipment would I need?