Oh. You don't. I just prefer to use the TV speakers for TV, because it sounds so crappy going over 2.1. Apparently, the crappy sound cancels with the crappy speakers.

In that case, all you'd need is S-vid&optical from cable box to receiver, S-vid and optical from the DVD to receiver, and S-vid to TV.

I am the Doctor, and THIS... is my SPOON!