@Jay47: Is the issue present on all channels and sources, and in the sample image via Settings > Support > Self Diagnosis Picture Test? If so, please reach out to our Help Desk via the link below, and an advisor will be able to assist you further, and arrange any necessary repairs.
For your peace of mind you will be able to arrange an in-home engineers inspection, so you don't need to worry about sending it away.
I’m having similar issues with a Q800T and have been back and forth with Samsung and Asurion on the phone for hours since February and no one can seem to get me to the appropriate people for the extended warranty I bought through Samsung or figure out the correct process as I am continually just thrown around from department to department. Do you have a more recent update and if this issue has been resolved for you yet?