By Beth Pinsker, Editorial Director of dealnews While it's hard to find a DLP TV in a store these days because flat-screen LEDs and plasmas have taken over, there are tens of millions of units in homes across the country. And all of them have something of a ticking time-bomb inside — the DLP lamp that will explode or fail at some point in the next 8,000 hours. "I sell thousands of lamps per month," says Mike Ness, owner of DLPLamps.com, which sells bulbs for every variety of DLP TV. "The people who call us are probably going to do it themselves. It's like the equivalent of changing a printer cartridge. But a lot of people still are afraid to do it." Despite how easy it is to replace a DLP lamp, millions of owners still call service technicians to do the job, at exorbitant rates for just a few minutes of work. If that sounds crazy to you, just watch our easy, how-to video and save yourself $250 in just 3 minutes. Beth Pinsker is dealnews' Editorial Director. She was most recently the Editor of WalletPop.com, and has been a life-long bargain hunter. Follow her on Twitter — @bethpinsker. You can also sign up for an email alert for all dealnews features.