I remember, years ago, reading about a 40-inch CRT television set. It had a 4:3 aspect ratio, weighed several hundred pounds, and cost around $100,000. I think it was a Sony. It was completely impractical, but it got me to thinking that some day I wanted to own a TV set with a screen that size. Today I own a 46-inch flat panel, but I saw something this week that got me thinking again. Panasonic just announced its new 152-inch plasma display that should be available early next year.