Sky glass keeps stopping makes loud noise and screen has no pictures just lines

[Linzi20]

Every few days the screen picture goes off and is covered in lines. The tv also makes a loud high pitched sound at the same time. Thsi has happened three or four times now and has to be powered down to stop it. 
it then works ok again. 

[Fothergill1]

@Linzi20  I had something similar a couple of years ago with my Glass TV, however yours sounds a little more severe.  I found a normal reboot didn't resolve it so left the TV unplugged overnight.  When I plugged it back in the problem was resolved and luckily it never came back.

Give it a try but if it doesn't work or if the problem keeps coming back I would call Sky for some additional troubleshooting and maybe a replacement Glass TV if it is within its 2 year warranty period.

[Linzi20]

Thanks that's really helpful. Yes it will do as we've only had it for a few months.