Which channels will broadcast the big day of William and Kate

In England the BBC (and every single other channel) will air the wedding.
In the US, the following stations will broadcast the Royal wedding of Prince William and Kate Middleton Live- beginning 4AM April 29, 2011

Guest list for royal wedding invites debate, controversy

LONDON -- "A 'Who's Who' of tyrants and their cronies," blazed one headline. "Riffraff at the royal wedding but no Tony Blair," screamed another.

How to watch William and Kate’s wedding Live on your PC

JUST in case you’ve been living under a rock for the past six months, Friday April 29 is Royal Wedding day when millions of people across the world will watch Prince William marry Kate Middleton at Westminster Abbey.
The occasion has, of course, been marked by an extra bank holiday so people across the country can celebrate the day, be it through a street party or simply by having friends over to watch the wedding on television.
For people have no TV, how to watch the live on PC, here’re three ways: