I took one phone back for exchange because of this problem, and the second one does it too.
These horrible lines make filming pretty much worthless.
I am dissappointed with the camera as a whole, it doesnt focus right, having half the photos turn out blurry. I find it difficult to get a sharp shot indoors at all.
Trying to take a macro photo is hopelessly difficult, and even when the viewfinder shows a clear shot, when you hit shoot it can drift out of focus.
My sgs 3 took vastly superior photos, and I loved its macro mode, as does my gfs note 2.
Specs wise the note 3 might be improved but in real life use its horrible.