Gonk the A/V switcher box is a SVAT SW200 which is a 3in 1out with a choice of S-Video or composite for video and either composite or optical for audio.

The way I currently have the tv, switcher box and LeapFrog setup (without the dvd) is this:

Sat receiver- using S-Video and composite audio to the tv. The only other video output is composite so thats going to the switchbox. If I remember right because the sat receiver is pretty old it only had composite audio outputs so I had to use y-splitters coming out of the sat for the audio so I could have audio going both to the tv and the switchbox.

Tivo (Standalone)- I used the S-Video output to the tv for video and composite audio outputs. It had another set of composite outputs (audio & video) so I ran them into the switchbox.

Dvd- it is hooked up to the tv using component and composite audio but of course I could use optical I just don't have a cable at this time.

So everything going into the switchbox is composite and the output of the switchbox is composite going into the LeapFrog. Yes you are right the LeapFrog only accepts composite and RF coax.

It kind of sounds like you are saying because I have everything ran to and from the switchbox with composite (only option) it's not possible to hookup the dvd because the only remaining video output I'm not using is S-Video and I couldn't use S-Video in this particular situation. Correct?