When I want to watch a tennis or football match I often switch to the BBC, because I like their commentary better than the Dutch channels'. But lately I've noticed an annoying phenomenon. The BBC adds a black bar around the screen, a bit like the black bars at the top and bottom of old movies. The bars are at the left and right as well however, cutting off about an inch from all sides of my screen. Since my TV isn't exactly cinema size, it almost makes the ball invisible when I'm watching tennis.

I was wondering if it happens to BBC viewers in the UK as well, or just to continental Europeans maybe? And does anyone have any idea why it happens? It's only with sports matches, not with regular programs...