Cable box, OTA or a Sat. box?
do not use s-video, that is so earlies 90's.
optical or AKA Toslink is just plug & play, you may have to asign the port on the reciever but that is it.
i got a STR-k6800p sony surround sound receiver and i want to hook it up to a samsung series 5000 LED HDTV. i hooked up the dvd , TV and surround sound and it worked but i can't get the surround sound to work with the tv. any help? i dont understand this. im not very familiar with the s-video or optical ouput yet. so i tried to make it work with regular RCA cables. and i just dont understand it.