you can hide/unhide channels by following steps...
Step 1 - Go to set up
Step 2 - Go to Installation (installation code is 1234)
Step 3 - Go to user settings
Step 4 - Go to channel locking
Step 5 - Go to lock/unlock or hide/unhide channel
Step 6 - Select the channel and click the green button on
remote
Please check does this work.