I am having trouble linking my VCR, DVD and TV through my Yamaha DSPE800 processor to get Surround Sound from all 3 sources. My VCR has 2 SCART sockets (no S-VHS), as does the DVD player (which also has an optical, composite and S-video connections). Will it be worthwhile buying a VCR with S-VHS connectors and switching through the AMP? Help!!