You can find the whole set at http://www.chenzhenglei.co.uk/
(click on "Shop" and look for the brown cover box)
It is a 16 dvd pack and it includes: Traditional 103 Form by Yang Zhenduo (5 disks), Traditional 85 Form by Yang Zhenguo (that's right YZD's younger brother!)(3 disks); 13 Short Form (1 disk), 49 Demo Form (2 disks), Sabre Form (1 disk), Sword Form (2 disks), Push Hands with Master Yang Jun and his brother Yang Bin (awesome!) (1 disk); and Demonstration (1 disk).
I bought it a few months ago and I have to say... It is one of the best Videos The Yang Family has ever done.
The push hands DVD it's outstanding.
I hope this helps