"THE SECRET CITIES OF MARK KISTLER" MOVIE. The untold story of the legendary art educator behind the beloved '80s and 90's shows "The Secret City", "Draw Squad" and "Imagination Station". Mark Kistler became a well-known face on classic PBS alongside Sesame Street, Mr. Rogers, Bob Ross, and Reading Rainbow. He helped shape a pivotal era of instructional programming for children in the pre-youtube world, teaching 3D drawing before CGI. With over one million books sold, the Emmy-award-winning host continues to inspire audiences through his incredible hand-drawn worlds and unique teaching philosophies.