HDMI: This is the port your modern HDTV likely uses to transmit video and audio over one cable.But it'll do in a pinch if you have no other options. Since it's analog, it won't be as high quality as the other options below, and converting the signal for a TV's HDMI port requires a dongle that plugs into the wall. VGA: This was common for years, but you won't typically find it as often these days except on older or office machines (and some older TVs).