I have a Magnavox combined DVD and VCR player. I have been able to get the Jumbo remote to work on my TV and on the VCR part of the player but not on the DVD. What am I doing wrong? To find the code for the VCR I let the remote serach for it, but that does not seem to work for the DVD. Also, there is no button to push for a combo VCR/DVD if you want to search for a code for it. Please help. Thanks