On Wed, 1 Jan 2020 14:04:59 +0000, Broadback
wrote:

Sadly I have no record of the model, on the back are loads of numbers
but none seem to correlate to a Samsung. The problem is the settings. It
has automatic switch off after a certain time that I wish to negate. The
settings are done by buttons at the bottom of the VDU, however I cannot
find the one I require. Can anyone please help?

See if you can find it on Google Images.
--
Dave W