Chances are you won't be watching Monday Night Football at the bottom of a swimming pool. "But you could," says Jack McKeague, GM of Ciil Technologies, whose barbecue-friendly, weatherproof flat screens start shipping this month. The 1080p HDTV is designed to work under 5 feet of water and at temperatures ranging from -- 40°F to 140°F. The key to its versatility is a thermodynamic heating and cooling system -- most TVs have vents, filters, or exhaust fans -- operating beneath a seamless exterior that's impervious to dust, ice, insects, even a cupful of Stella Artois when a blown call leads to a Bears loss and ruins your "friendly" wager. An ambient light sensor adjusts brightness and contrast to minimize glare. Available in 32-, 42-, and 47-inch screens ($2,800, $3,200, and $3,750, respectively) at ciiltech.com .