Count:
The form I see in the clip is pretty close to:
#21001 Linking Form
This is one of the best introductions to Chen Style T'ai Chi. This "linking form" is the equivalent of the Short Form in Yang style. Though simpler than Lao Jia the first major T'ai Chi Chen form, it doesn't not skimp on the basic concepts and movements for a full understanding of this "parent" of T'ai Chi.
Additional topics covered in Hsu's typically thorough and interesting manner are:
History and Lineage of Chen T'ai Chi
Basic Principles - (the kind of information neglected on so many tapes)
Basic Training- traditional eight stances
The form itself Linking Fist
Ch'i Kung specific to Chen T'ai Chi-Ch'i gathering
Posture Training-Expansion
Push Hands Practice-elbow searching
T'ai Chi Usage- How it works specifically for Chen style
$34.95 or 10 % off for ordering the set
http://www.plumpub.com/sales/dvd/dvdcoll_adamhsu.htm
I am pretty sure the Du Yu Ze taught this to most who went to him. I have a clip of Tony doing the entire form in front the old Wu Tan school in the 1970s. We never learned this particular form and instead learned the 3 Abstract Chen forms that Liu created. I think Su Yu Zhang has a tape out on the first form but it is in Japanese.
Thanks SPJ for your comments. Always appreciated.