my TV picture keeps flicking on and off.have checked all wires,but no difference. HELP????

[mumsiestv]

My TV picture keeps flicking on and off. I have checked all wires, but has made no difference.  HELP????

[slowtrain]

Hi mumsietv

Just need to know the TV model number. This can be found on the back.

Does it occur when watching a normal TV programme and/or when watching a DVD/video? Is there a noise when it happens also?