@BBCRD
I turn it off.
It makes little difference to power consumption and distorts the image balance.
Surely BBC R&D can tell you that. They had smart people when I worked in the BBC.
Also I use a 6W sat box, FM TX (sold for phone/mp3 to car radio) and FM Radio for non-local stations. Lower power than many DAB (turned off May 2021 in Ireland).
No-one I know uses TV to listen to Radio, though a £10 USB DVB-T stick can work on laptop or Android.
The best way to improve energy use in the longer term - is for the #BBC to join those on the right side of history.
Stop supporting fossil fuel industries, politicians or the public, by proxy (e.g., stop reporting their non-science rhetoric without critical evaluation)
Either that or just turn the BBC, ITV, etc, off & read a science publication.