The Engineer came round and said he couldn't really do anything in my house without sending it back to the workshop.
I didn't want it going to the workshop for weeks and possibly being damaged in transit,or at the workshop.Plus it might come back not adjusted to my liking,or causing other effects.
The other night I altered my Contrast and Brightness settings again.After watching a films night scenes,I realised I had the Brightness too low,so to compensate for this and turning down/loss of the Contrast,I turned the Brightness back up.Night scenes and other scenes are better lit now.My Contrast blooming is still under control also.
Even after turning the Contrast down to 62 from 81,the TV has still got loads of Contrast.The whites and Contrast are the strongest I've seen from a Philips TV,or any other.
At least this nasty in adjustable,unlike lines,banding etc,I've had with previous TV's.
I do like this TV a lot and am happy with it's great pictures.Recommended.