Although the royal wedding of Price Harry and Kate Middleton was very early in the morning for many Americans, millions of Americans joined the estimated 2 billion viewers worldwide who tuned in to watch the coverage. At least 28% of Americans expressed big interest in the royal wedding. Most of the strongest interest in the wedding appeared to be from women over 40.
For such an early morning event, in a time slot usually occupied by infomercials and other late night junk programming, these sort of numbers were very big. All of the major networks were on air with coverage of the event that ran for several hours.