A:Answer You need an HDMI splitter, switcher, or hub. HDMI splitter should allow you to use the one cable and split it out into 2. You could also try a switcher (may call it something else), where you would switch from one to the other. My suggestion is try both. First search Best Buy for HDMI splitter, and most of the other items I mentioned will come up too. Take a look at the descriptions. I have done this sort of thing tons of times. Good luck!