The HDMI Ethernet Channel technology consolidates video, audio, and data streams into a single HDMI cable, and enables high-speed networking. Audio return channel allows an HDMI-connected TV with a built-in tuner to send audio data "upstream" to a surround audio system. Imaging 3D via HDMI and support all HDTV formats. In addition to RGB color and x.v.Color, it supports for three additional color spaces, enabling to deliver better accurate color on an HDTV.