Problem with DVD Recorder

[scotman]

I have a Panasonic DVD recorder with Freeview+ tuner. Model is DMR - EX 769. I switch everything off every night.
When I switch on again after a few minutes this machine presents a message of the form saying that another channel has been detected - do you wish to retune? It does this every time.
I know this is not correct and there are no other channels.

Q1 Why is it doing this?

Q2 How do I make it stop?

thanks

[merciasounds]

Are you really sure that there are no new channels? Regular channels are also getting HD channels all the time.

[scotman]

Every single day? I don't think so.

[AlBags]

Do a complete new scan .. with antenna disconnected. When it finds nothing, reconnect and scan again/store channels.
Any changes after that are due to broadcast signal strength or your antenna. Try a scan late at night. See how it goes.

[Blades_fan]

If you go into the set-up menu you have the option of turning the "new channel detected" message off.
I've got 2 Panasonic TV's with built in Freeview and it is annoying to keep getting this message.

[stoofur]

Do you turn the tuner off at the plug or just put it into standby? I know my freeview tuner updates overnight (TV Guide etc). So I suppose if it is switched off at the plug then it can't update.

[scotman]

Thanks all

I shall try AlB's plan first. If that does not work I will look into Blades suggestion.