Good news: the world's biggest high-def screen is a full 218ft long and 37ft tall. Bad news: if you want to see it you'll have to spend an afternoon with some of the smelliest, most obnoxious people in the universe.

You see, the problem with Mitsubishi's 8,000 square foot screen - apart from the extreme engineering required to construct it from 35 separate glass plates and its almost $30m (about £16m) cost - is that it's at a racetrack in Tokyo.

Race-going in Japan is not of the Royal Ascot or Glorious Goodwood vintage, where cucumber sandwiches and champagne are the order of the day. Oh no; it's more about 5ft 5in middle-aged men in nylon slacks spitting on every square inch of ground and stinking up the place with sake fumes and cigarette butts while they form a mass chorus to decry their wives, foreigners, left wingers and, especially, the jockeys (though whether they'd object to them head-butting badly behaved gee-gees is anyone's guess). Stay away.