Subscribe and 🔔 to the BBC 👉 https://bit.ly/BBCYouTubeSub Watch the BBC first on iPlayer 👉 https://bbc.in/iPlayer-Home A behind the scenes look at how the BBC created the BBC iPlayer trail for April Fools' Day, featuring a colony of flying penguins. Watch the April Fool video: http://www.youtube.com/watch?v=9dfWzp7rYR4 #bbc All our TV channels and S4C are available to watch live through BBC i