I also just found this: I can set all the antenna channels to my favorites list (I only have 8 of them).
To change to a digital channel of the format X-XX or X.XX the remote needs to learn the "-" or "." command from your original remote.
Click the Devices tab on your home page. Click Settings next to your channel-changer device and then select Learn infrared commands. This will display a page of commands. Scroll down to the Learn a New Command field and enter "-" or ".". Click Learn New Command and follow the instructions to teach the new command. Once the command is learned, you will be returned to the list of all commands. Click Done to return to your home page. Click the Activities tab and select the watch television type activity. Select Set Up Favorite Channels and click Next Enter the channel numbers (example: 3-10) Click Save when finished. Update the remote.
