Good picture device with weaknesses.

I use the TV to a receiver. He makes a really good picture. Even madness, did not think that there such a big difference to FullHD would. Especially since it is so only extrapolated. Nice and flat and he is also looking good.

However, there are also negative. Worst of all is the picture and sound are out of sync. Sometimes more sometimes less.
The sound can also be forgotten. The problem many have flat screen TVs.
What also does not seem to go 3D is via external source. When I switch on Sky 3D, I see only two half images. Switch manually benefits nix. When 65er Panasonic in the living room of the receiver on the same model is dependent 3D no problem.
The service sucks. Have Changhong sent to my problems but received 10 days before a mail still no response. Will call there times next week.