Yes, I did check the comments, but remember the OP said that it was a firmware update that caused the ads to appear, and it was a GT50 model. Nobody has the exact info on what firmware revision caused this problem and when it happened except the OP and he didn't post those details, so everything is anecodotal. Tech support was reported to have confirmed this issue on "some TVs", whatever that means. So I posted it over here to try to get a consensus if other people are having a similar issue. The consensus is that they aren't, which is good.