What cable connects home theater to TV?
HDMI cable If your Home Theatre System, TV, and the HDMI cable support ARC, it means the TV can transmit sound to Home Theatre System. When you connect the TV to the Antenna/Cable directly (without Set Top Box, it will allow you to hear the TV sound through speakers connected to Home Theatre System.
How do I connect my sound system to my cable box?
Plug an HDMI cable into the HDMI output on the cable box. Plug the other end into an HDMI input on your HDTV. Inspect your television auxiliary sound output and your surround sound stereo auxiliary input to determine if they both have RCA ports or HDMI ports.
Is sound better through optical or HDMI?
Both HDMI and optical pass digital audio from one device to another. Both are better than analog (the red and white cables). The biggest difference is that HDMI can pass higher-resolution audio, including the formats found on Blu-ray: Dolby TrueHD and DTS HD Master Audio.