I've seen similar on my 720p NS-32D220NA18, however, the only time I recall seeing it is when my Bluray player starts up, so I assume it's saying the Bluray player is feeding it 1080p. But I'm not sure. In some cases, it does appear to be a little less sharp than our 40" 1080p TV, so I do believe it is 720p, but I haven't been able to figure out how to confirm that.