Photo: Panasonic's 103-inch TV

At 103 inches, this high-definition screen from Panasonic, on display at the CeBit show in Hannover, Germany, in March, could help redefine home entertainment. It could also require some serious home renovations.

The flat-panel television measures about 7.8 by 4.5 feet and weighs a mammoth 474 pounds.

Photo by Charles McLellan/ZDNet UK