From an article posted on mediaweek.co.uk titled,
"The Muppets, Biscuit Tins and Angry Britain - a snapshot of the Royal Baby story"
Here is a segment from that article:
However the might of AP, BBC, Yahoo, CNN, Fox and Sky could not keep up with one particular news report. Miss Piggy and Kermit the Frog’s welcome to #royalbaby was one of the most watched and tweeted pieces of coverage around the time of the birth. There were a massive 61m page impressions on the YouTube page, numbers that would make many major news networks as green as Kermit with envy.
The timing of the announcement of the birth was crucial in terms of the pick up on the other side of the Atlantic. Prince George arriving in time for the likes of Good Morning America and E! News morning shows helped this story go transatlantic very quickly.
Hello, OK and E! Online were the three biggest news organisations on Twitter, aside from Miss Piggy and Kermit, who had the most influence during the time of the birth.