Mine just started blinking this week too. But I think it has to do with daylight savings time. The firmware that shipped with the TV still uses the old daylight savings time schedule so right now the clock is an hour off because it thinks daylight saving time ended last weekend. This somehow screws up the guide. This also happend earlier in the year when daylight savings time began before the TV expected it too and I remember it happening last year. Wait and see if the lights stop blinking this Sunday when daylight savings time actually ends.
By the way, I've read there is a firmware upgrade that fixes this. However, I'm not really sure it matters since my understanding is that the guide becomes usesless when the analog signals go away in February.
By the way, I've read there is a firmware upgrade that fixes this. However, I'm not really sure it matters since my understanding is that the guide becomes usesless when the analog signals go away in February.

















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