RCA Connectors are the standard for most home TV's. It is used in both Video & Audio. In most applications, the following applications use the following coloured RCA's:
Yellow: Video
Left/Mono: White
Right: Red
in RGB the Red RCA is for the Red signal, Green for Green ect.
Image from here
Yellow: Video
Left/Mono: White
Right: Red
in RGB the Red RCA is for the Red signal, Green for Green ect.
Image from here