Just to let everyone know. I now also have an 55UH950V and an AppleTV connected and that works much better with HDMI-CEC, that is, the TV is turned on whenever I start the AppleTV (4th Gen) with the Apple Remote. It has worked every time during the last month. However, the 32LB650V does only work 1 out of 10 times which is strange.
Any ideas?