Here is a collection of YouTube videos showcasing this interesting skill:
A tea-pouring shifu performs for the crowd at a teahouse in Chengdu, China
L'art de servir le thé en Chine
Kung fu tea
Fantastic Tea Pouring Skills
Can you do that?
Here is a blog post by Teavivire that goes much much deeper into the history and myths behind this fascinating art form:
The History of the Chinese Traditional Ceremony Gongfu Tea- Long Pot