Hahaha, UK Metric ? Well in theory maybe.....
The funny thing is that TV's used to be indicated at the diagonal in cm here. Then the computers came, and the monitor sizes were indicated in inches.
And now, the last years, with the ever increasing popularity of LCD and plasma TV's, all of a sudden I see diagonals of TV's in inch here too.
I remember in Germany a couple of years ago (and maybe still) it was actualy not allowed to indicate anything in inches (called zoll there). So go figure how they indicated a 3.5" floppy

However, as you all know, we in Holland are more relaxed then our eastern neighbours about those things.....I see 17", 19", 21" etc. etc. everywhere...