The screen goes black, then I get a screen full of multicoloured [but mainly white] pixels and then the picture comes back and my TV diplays the input settings in the top right corner as though I had just switched to that input.
Not a huge hassle but annoying none the less. Seems to happen more often than not just after the ads have started during One News although that is probably a coincidence more than anything as it also happens at other more random times. If I miss anything I can always skip back on the TiVo for the 5 or 6 seconds I missed.
It has done this on both fixed 1080i and 1080i hybrid settings.
I have rebooted also.