There are two sets of training videos: one for the Classic AAT, and one for the new AAT30/AAT15/AAT08 series.
For Classic AAT training, watch only the Classic video series.
For the AAT30/AAT15/AAT08 (4th Generation) products produced after 01/01/2015, watch the Classic videos first, then watch the AAT30/AAT15/AAT08 videos.
Certification Exam
Sunsight now offers a Certification Exam for the complete AAT product line based on these videos. The Exam costs $50 and successfully passing it will give you a certificate good for one year. Click here to join.