Which Platinum remote do you have UR74A or UR73A? If you have the UR74A it is a learning remote, so you could use the original VCR remote to program any of the Platinum remote keys to act as the input button. If you have the UR73A then it is not a learning remote, therefore if none of the keys act as the input button you are probably out of luck. I have the Platinum UR74A, however I do not use the VCR button, but I have programmed several of my cable button keys using my original cable remote to do functions missing from the Platinum remote.