The Panasonic PT-61LCZ70 is an LCD projection based HDTV that features a 1080p native resolution, and uses a different kind of LIFI technology for its bulb. Most rear projection televisions use what Panasonic dubs a High-Intensity (HiFi) bulb that lasts anywhere between 3000 and 6000 hours. Panasonic's Light Fidelity (LIFI) technology is intended to last substantially longer than traditional bulb, but sacrifices picture quality as a result. Replacement bulbs cost around $300 as of November 2007, and are not user replaceable, meaning extra cost will be incured to hire someone to change the bulb.
