Don't know about the videos, I have also heard they were Tabatabi's. I spent the few extra dollars to see if the complete certificates were sent. Yellow thru 1st Brown are complete but do not contain a date. The BB cert is complete minus the date, so I guess you fill that in when you video test (or those not so honest fill it in when they want). I emailed about testing, just to find out any answers as there was a previous thread about this and I am already under a large organization, they were slow to answer and the answers didn't seem to go with the questions I asked. Plus the lineage is qustionable. The manual though is quite good and very through, even though I have seen some say the way some of the material was written was copied from other sources. I have Larry Tatum's manual that I got from him back in the early 90's and it is all of the techniques. I wanted something more explaining the forms and sets, since when I wrote all of my own stuff down it was with the old Tandy computers and I never updated it and along comes XP that can't read the older stuff. BTW LT's tapes are great. So are Jody Sasaki's. CT111 I think it is Century has Sasaki's DVD's for $10 each.