Freeview HD content - Screen goes black for few seconds

[eidolon]

Last year I bought a 55" Philips TV and noticed that the screen would regularly go black and it would also lose sound for a second when watching Freeview HD content. This probably happened about every 10 minutes or so. At the time I assumed that it was down to a poor quality aerial so I had a new one fitted recently and the same happens.
I've updated the firmware on the TV and the problem is still there. Signal strength and quality also seem ok and I've disconnected all AV equipment so it's just a plain old TV right now.
It doesn't do it in any other situation, just on Freeview HD, standard definition stuff is fine as is all other inputs.



Any ideas?

 

[eidolon]

I have another TV on the same aerial and that one is fine so I don’t think it’s the aerial.

 

[eidolon]

It’s been happening since the TV was new so I’d be surprised if it was overheating. I think I’ll see if I can borrow. Free view box to see if it still does it with that.