Thanks for the clarification.
I take this opportunity to ask you what is the right way to edit an existing bouquet. As I have already said, I re-entered all the channels (or almost) with the right indications in the "Digital terrestrial" bouquet, but I did it following a rather laborious path: from the general list, add channel to the bouquet, chose Digital terrestrial, where the channel is queued, then placed on the added channel I enabled the shift, put it in the right position and deleted the wrong channel. Doing this for every single channel was laborious. I noticed that when you are on the favorite channel list, pressing the "Menu" button also gives you the option to edit the bouquet. I tried to do it, but, for my ignorance, I did not understand which is the right operating mode. Could you point it out to me? Thank you
Edit: It is not all clear to me, but I have found how to do it. Thanks anyway.