Hi, in the last couple of days I’ve had a problem where my TV screen keeps flickering and getting something like artifacts on it and then it goes off with the power light on the TV flicking on and off in red. It comes back on if I turn off the 4000t then turn it back on all via the remote. Has anyone else experience of this? At the moment I’m guessing that it is to do with the Humax. I’ve checked the aerial connections.