Since you won't be displaying the images simultaneously which may require some form of a splitter, then any AV switch box will do. These switch boxes have these audio Left(white) , Right (red) and composite Vidieo(yellow) RCA jacks which are purely passive and are identically connected to the siwtching circuit. I don't see any reason why they can't be used to switch those identical Y, Pb , Pr component RCA cables between 2 or 3 displays. But if there are swtich boxes out there explicitly intended for component video switching, they surely wouldn't be any different from these ordinary AV switch boxes.