At last I have cracked it. You have to press the F function key on your remote until it comes up with PRESET NO/YES. The NO will be highlighted so you use the volume button on the remote to toggle the YES to be highlighted and then presss the F button again. It will offer you an Auto Scanning/Tuning option - press the F button again and it will autoscan for channels and tune and store for you. The F selection talked about earlier involving the < and > symbols is for fine tuning only which, if you are like me, you can spend the rest of your life wondering why it wont tune. Hope this helps the frustrated out there.
Steve in Bristol, August 2008