Here are some helpful videos to assist you to setup your CM7500/DVR+.
Installation and Set Up Walkthrough
Downloading Software Updates
How to Program Remote
How to Connect to Internet
How to Hide Unwanted OTA Channels
How to Activate Free Internet Channels
How to Schedule Recordings
How to Playback Recordings
Replace Remote Batteries on Old DVR+ Remote
Quick Fix for Missing or Failed Recordings
Quick Fix for Loss of Video Audio
You can find the Quick Start Guide and the complete User Guide here.