Hi all, Sorry if this has been covered elsewhere, ploughed through as many of the other threads as I can find on this TV. I've had the Samsung for about 4 months, but it seems to be developing an issue. Very occasionally, and seemingly only when watching the built in freeview, the screen will go blank for a second or so and then come back on. I know Costco have a great returns policy, but everything else about my set seems perfect (no dead pixels, etc) and I don't want to run the risk of creating more problems if it's something fixable. Has any one come across this with their sets? I wondered if it could be anything to do with the firmware update? Any advice greatly appreciated. Thanks.