Good morning, Rusty!
Now....are you sitting down.....?
Something has worked!!
I went through the gamut yet again! (for what must be about the sixth time!)
I unplugged every appliance overnight, then put back all bar the aerial this morning.
I retuned the Freeview box without aerial to rid the box of its "memory".
Then I put back the aerial and retuned again using the Default setting to get back the Channel settings (as originally from the factory).
To my delight - and utter amazement - I now have an operative ITV4!!!!!!!!
I shall try again in about an hour to see it is STILL there!
If you hear screaming.........!
I don't know Brooke Henderson. She must be good to beat Lydia?
Yes, a song by "The Who", I think?
Raining here now...altho I just managed my walk in time.
P.S. No idea why the strategy failed to produce the "goods" before?
Maybe a varying local signal? though if so that might mean I might lose the channel again?