I have the above TV and am getting speech stutters and picture stutters in the majority of channels, Freeview I think more than others.. My tv aerial is under 1 year old. I use a Humax box. I have retuned but still have the same problem. This TV was given to me so I do not have an Instruction manual.
I note that the main cable has two white ferrite cores. Apparently these help stop interference. These slide easily up and down the cable. When they are moved around the stutter comes and goes. Does anyone know how long these cores last. Should they slide up and down the cable? Should they touch? Can they become non-functional?