The last few months my tv randomly shuts itself off. Usually after two or three hours of use and it takes two or three attempts to turn it back on and then works fine. This morning it won't come on at all (it hasn't been used in two days). There is a blue and red light that blinks in unison every 1/4 second. The tv attempts to turn itself on and then just shuts off. I replaced the bulb about 8 months ago, so I don't think that should be the problem. Do you have any suggestions? I have unplugged it for about ten seconds and then plugged it back in but had no success.

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