Hi

as the title says I Upgraded from HDTV to UHDTV 4K UHD

now on all channels on my et8000 is get this really annoying judder issue, its the best way i can describe it.
Its like a really tiny little jump in the picture but its enough and often enough that its noticeable, audio is not affected.

anyone had this issue before? its driving me crazy

thanks for the help all