I think I know the answer, but before I take it to the dechetterie, I thought I’d just check here.
The Samsung Smart TV in our gite has a vertical grey shadow that covers about a 1/4 of the screen. It’s there from the moment the TV is switched on (so not source/channel dependent).
Samsung’s website says this can happen with a weak signal, so plugged the TV straight into the back of the livebox - no difference.
In fact, I’m going to wait for another day or two and see what happens. I’ve just checked the internet speed with our laptop and it’s way down at about 1/2 mbps even from the back of the livebox.
Unfortunately our cottage walls are straight down onto earth and we get rising damp in the walls when it has poured with rain as in the last few days -the surrounding fields have got standing water at the moment. This means that the telephone point gets damp in it, not to mention the wires under the floor. I’ll try again when things have dried out. Touch wood, so far we’ve never had a problem when our guests have been here.
I’ll report back in a few days.
A computer hardware helpline operative got the sack some years ago for something similar after a customer phoned in with a problem with his new PC.
The operative asked if the plug was in the wall and when the customer said “ah! no actually” he asked if the customer still had the box the PC came in to which the answer was “yes, of course”.
“In which case” continued the operative “re-box the PC and send it back to us - its obviously far too complicated for small minds like yours”