[mythtvnz] Samsung Flashing Screen on Start / Channel Change since accepting retune update offer

[tortise]

Hi Gurus/

Anyone else noticed this?

Flashes wildly for up to 15 seconds with channel changes. Seems since I 
accepted the recent auto retune.

Have two of these, both doing the same so its unlikely a one fault in 
one device.

Something about the signal change / retune / firmware?

Mythtv still works fine.
Model: UA46C6200 aka UA46C6200UM
Software version, latest, is shown as T-VAL6DEUC-1016.0