RCA cables started as single-channel connectors for audio, later evolving into stereo sound by adding a second cable. The iconic yellow RCA cable was created for composite video, used widely in VCRs, ...

HDMI 2.1 connections are key for high-quality audio and video. 3.5mm offers basic audio; optical handles DTS/Dolby; eARC provides the highest quality sound. USB ports support charging, file access, ...

My parents (lucky me) are planning to get a plasma TV, which will have component video inputs. It's going to need some fairly long (20-30 feet) cables to reach the rack of stuff that will hold the DVD ...