I bought the unit back in April, 2005. The original lamp was in service until this past August, at which time it had logged approximately 3,900 hours.
The symptoms that indicate the bulb is ready for the scrap yard began to surface, so I purchased a new lamp.
That was in August, meaning I have had the new bulb for about three months. For the past two or three weeks, the set has shut itself off several times. Just like that, it turns off. I wait a few minutes and turn it on again. Works fine. . .until the next time the same thing happens. It just happened twice in about a 15 minute period. The set had been on for about 90 minutes.
Any ideas? A defective bulb? Something else? Thank you.