Thanks have2cit.

It's as contiguous as it can be considering my use of couplers. My cord is 3 parts.

From GPU>Coupler>Television.

Could my GPU just be feeling too heavily taxed by running 3 monitors at once?

Also I have tried a bunch of different couplers and still B&W. It's entirely possible my card's S-video out has been broken from the very beginning because I have never tried it before.

I just thought there must be some kind of S-video length I was exceeding because I couldn't find cords that were over 6FT. Granted, I didn't search exhaustively.