Input (grade 13): As an understudy to Fred Rogers, he traveled to Canada in 1963 to work for the Canadian Broadcasting Corporation on an early version of Mister Rogers' Neighborhood.
Output (grade 10): He first started learning how to do this when he moved to Canada in 1963 and started working for Fred Rogers on an early version of Mister Rogers' Neighborhood. This show was on the Canadian Broadcasting Corporation TV channel.