I recently purchased a Panasonic TH-50PX50U. I currently have analog cable tv service and have the coaxial cable connected to the Antenna/Cable In connection on the TV. I would like to connect a HDTV antenna to receive local HDTV broadcasts in addition to the cable tv service (the tv has an atsc tuner) . What’s the best way to get the HDTV broadcasts via antenna as well as the cable tv service when the tv only supports a single coaxial connection? Thanks in advance to anyone who can help.