I just posted two videos of an interview and demonstration of Yang Short form by Grandmaster William C. C. Chen on youtube (the third video coming soon). It was taped in 1975 and has never been shown before. Link: [ame="http://www.youtube.com/watch?v=x6hi_ffahsU"]William C. C. Chen - Tai-chi Grandmaster - Interview and Yang Form Part 1 - YouTube[/ame]
Wow. Makes me appreciate just how long it must have taken to put the original forms together... so much detail.