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 NET, then its successor PBS, from 1968 to 2001
A precursor to the show appeared on Canadian CBC Television starting in 1962, with the US version produced in Pittsburgh. Puppet characters on the show include King Friday XIII, Daniel Tiger, and X the Owl.
"Blue's Clues"
"Romper Room"
"Mister Rogers' Neighborhood"
"DuckTales"