England has one time zone. America has 4 - more if you bust out of the lower 48. This presents some challenges to business. It presents more pressing challenges to television viewers - especially west coast viewers of live shows. Because we just GOTTA do everything for the east coast. God forbid they be required to stay up late (for anything aside from Monday Night Football).
If you love TV and you love your computer, then you're super screwed during tape-delayed life events.
In England, they can do the performance and results of a competition on . . . wait for it . . . the SAME NIGHT. Because they have one time zone (and four channels). It's a brilliant system.
Downside - easily invaded by a number of other countries.
Upside - easy to enjoy collective TV viewing experience.