Phew. I've just ploughed through the full set of in-house AP video tutorials, done by the most excellent James Ritson. To help me learn and provide a reference, I made personal notes along the way. Here they are, complete with links to each video, in case they may be of help for you. No guarantees and all that.
Update 25 Mar 17: File with notes on change up to 23 March added.
Update 30 Mar 17: File with notes on change up to 29 March added.
170314 Affinity Photo Video Notes.pdf
170325 Affinity Photo Video Notes.pdf
170329 Affinity Photo Video Notes V3.pdf