Currently I use 6 Interact A/V system selectors. One is the main selector that the other 5 run into so that way it is only "pggy-backed" on one level. For my un-modded RF consoles I plug the RF output (RCA Plug) into the video input at one of the selectors ports and then I have the video output plugged into an RF De-Modulator to convert it into A/V outputs and then plugged into the main system selector as as an A/V signal.