If you need to retune your satBox S8100 then follow these instructions below:

Please note: that a rescan will erase your booked series and shows in the Guide, and will need to be rebooked after the rescan, this will not erase the recorded shows already in your library. 

1. Press MENU on your remote (The Menu button will vary depending on the remote you have) head to INSTALLATION then AUTO SCAN

2. Allow the unit to scan for the channels. once completed the menu should return back to live TV.