[xist]

The timezone difference would come into play too I think. If a show aired at 9pm PST, that's 5am UK time.

You would have to be very devoted to watch it live and then jump on the internet within minutes of watching it and voice your opinion on message boards.

[ZeroGravitas]

The timezone difference just makes it weirder. If there's a 5-9 hour time difference between the countries then why delay by exactly 24 hours?

[MichaelJW]

As I recall, the Lost finale was broadcast simultaneously in the UK and the US, so people actually did do this. Obviously that's a special case though.

One issue to bear in mind is spoilers; if something big and exciting and story-based aired last night in the US, chances are I'm going to see someone spoil some aspect of the plot on Twitter this morning.

[albemuth]

Formula 1 races and Tennis Grand Slams come to mind...