Dear Benedikte,
I want to give you a benchmark that your development team to use in tracking this issue. Here is the original video:
http://www.youtube.com/watch?v=bDzcn...layer_embedded
Here is what this video looks on 42PFL6007K - Sorry for the shaky camera.
http://www.youtube.com/watch?v=iyL-YnmBMbU&feature=youtu.be
The point is that the HDNM function does not process in a correct manner the vertical lines moving with speed and this is happening regardless the source: the first video with the History channel logo was from DVB-C, the one with the prison was from a mediaplyer playing web content through HDMI and this video is from youtube player in Smart TV. This inability of processing the vertical lines is the reason for which people are complaining about ghosting etc.
It will be interesting to know if this is the case with 7xx7 and 8xx7 series too or is just localized at the 6xx7 series.
I thing that you have enough proof to acknowledge this issue and to state that you are trying to solve it. I am looking forward for a quick solving of this very annoying issue present both in 2D and 3D. In 3D is even more disturbing since the broken lines gain spatial dimensions.
I am looking forward for your answer.