My 60 inch Mitz keeps blowing bulbs - Televison & Video

I have to assume you are referring to a projection TV when you say bulbs. With that in mind, the lamps do run hot so you want to make sure the TV has adequate ventilation around the TV grilles first. Next you want to make sure the lamp fan(s) are clean and no dust blocks the fan or cabinet openings the fan draws air from. That takes care of air circulation. The lamp itself has a relatively short life span of 2 to 3 years, I can't remember the hour rating off-hand. I have seen some last a year or just under but that's usually for high viewing times like 12 hours a day more than likely. Beyond that, the lamp ballast (power supply) could be an issue but it's less likely.

If you are changing your own lamps, make sure you don't touch the lamp with your fingers as the oils can from you skin can shorten the life of it just like it does with any quartz bulb, like halogen bulbs.