Recently get two new remotes. Both are working their respective DVR boxes, but not turning off /on both the DVR and TV with one push of the power button. Never had the old remote programmed to work the TV, it just worked the volume and power.
For other readers of this post, the model number on the remote is located in the upper left corner of the device. It's important to post the remote model number, the DVR or receiver model number (inside the card door) and the make and model of the TV involved.