I've got a pretty thorough list of all the available advanced codes for JVC VCRs using device code 067 or 0067. If you are interested, email me and I'll reply with the list. I own a HR-S3500U, and most of the codes work. There are some that are for features that my VCR doesn't support. If you own a more advanced model, they may work for you. I know these codes work with Cinema6, Cinema7, and should work with the Radio Shack 15-1994.

Dave