... Channel technology consolidates video, audio, and data streams into a single HDMI cable, combining the umatched signal quality and convenience of HDMI ... in HDMI 1.4 enables a TV, via a single HDMI cable, to send audio data "upstream" to an A/V receiver or surround audio ... back to the audio system, a separate connection had to be installed, typically an S/PDIF cable. 3D display cables hdmi The ...