Instructions 20Q Game: These are similar to full games, but for quizzes larger than 20 questions it will randomly select 20 questions from within the set. This is a quick way to get in some studying of a topic.     
What children's television show is described as:
Aired on PBS from 1989 to 1995
It incorporated sequences from the British television show "Thomas & Friends", which was in turn based on a series of books written by the Reverend Wilbert Awdry. Hosts included Ringo Starr and George Carlin.
"3-2-1 Contact"
"That's So Raven"
"Shining Time Station"
"Clifford the Big Red Dog"