i think used a composite switcher [3 RCA - video(yellow), left(white), right(reD)] to do component switching [3 RCA - Y(green), Cr(blue), Cb(red) ], audio is not an issue coz he used optical (direct to av receiver?).

how's the quality? trial and error; it out first... use the knock-off switcher but dont use knock-off cables. if u don't want to buy component cables, buy thicker composite cables... coz component cables are usually overpriced..