tvch????

can anyone tell me whiy it is that when i doo a scan it shows that i am picking up tvch 11 to tvch 20 but when the scan finishes and saves the data i cannot find them in my channel list.
i have tried manually scanning but again it shows them as being found but they are not in my channel list. explanation anyone thanx

 

possibly between saving and going back to your channel list they come up as named channels.

 

oh ok cheers