I have an Articos 55. 7 years old, original bulb, very light use. Had overheating issue years ago due to not cleaning filters. Set would shut off until cooled down. Now is different - I get a picture for maybe 5 seconds when it is stone cold. Each subsequent attempt is less until after 3 or so tries nothing picture wise until you leave it alone for 15 minutes. Fan is running, internal menu doesn't come up. Do bulbs fail like this? Hope so but don't want to buy one if unlikely. thanks