Composite video is the second worst choice for video game consoles. I would not recommend using it unless you need to, like if your equipment doesn’t support anything better. Composite video is the same deal as RF, only there’s less snow and white noise, as the video and audio are separated, and you also don’t need to tune into channel 1, 2, 3, 4, 95, or 96.
Composite video blends the luminance and chrominance together to output video in one pin. This results in an image that looks like ass on modern televisions. It looks okay on a CRT (unless it’s a Sega console or a CGA card for early PCs) and it is better than RF, but even for a CRT, there are superior options I will get to in the next three days. The audio quality is amazing, and that will be applicable for all upcoming entries.
Here are a few ways to remember composite video sucks: CVBS = (c)omposite (v)ideo is (b)ull(s)hit (mine), the video cable is yellow because it’s piss-poor quality (not mine, but a YouTube commentator’s), and police sketches are called composite sketches (AdamKoralik on YouTube)
*I do not have any stigma against Sega consoles and early PCs, except for their composite video output.
One note I would like to make that seems to confuse many people: component and composite are NOT the same thing! Component cables use one green cable, one blue, two red, and one white; one red is for audio, the other is video. Composite cables are one yellow, one white, and one red.