While David was being Hidden by the Human he first met.
David had to stay in a Basement to keep suspicions of a meter tall Dino running around.
However in the Basement there was an TV with several Movies, One of the first Movies he figured out how to play was
"Back to the Future" which he thought was ironic since he was supposed to be around 100 Million years old.
and this was his first introduction to Pop-Culture and Sci-fi. :)