The ZvPro 810 HDMI Encoder / QAM Modulator from ZeeVee lets you convert HDMI video input signals into digital cable channels and distribute them to an unlimited number of HDTVs over your existing coaxial cabling. The ZvPro 810 outputs 1080p/i, 720p, and 480p/i video signals, and features a single unencrypted HDMI input channel, with a 3.5mm analog audio input, and composite video input for closed captioning support.