Err, sorry for the silence. It's not boring, I just didn't fully understand the rule. Do you want us to watch the videos of his then post who says what, or do you want us to figure out who said the original quote that he altered in some way?
For example, in the Island of Doom, where Littlefoot talks about the blair witch, would you want us to to say Littlefoot said it, or try and figure out who made that quote in the first place?
Even in your example, the answers would be different depending on which one of those two you meant. In case of the former, it would be the phono versions of Littlefoot, Cera, and Petrie, while in the case of the latter, the answer would be Littlefoot from VII and VIII, Cera from VIII, and Petrie from VIII.
Really cool game, truly, I'm just not sure if it's about knowing his videos or knowing the original sources of the quotes that are listed.