TVO (short for TVOntario also stylized tvo) is a Canadian TV channel which broadcasts the show in addition to PBS affiliates.
TVOKids or TVOkids is how they stylize their children's programming block which XRSM airs on, classified as "school age".
In addition to the standard paired-story (22 minutes for 30 minute block) airings they also air standalone (11 minutes for 15 minute block) episodes too, with different debut dates.
Unlike PBS they also make some episodes available for online viewing for those who couldn't tune in or PVR the episodes:
- https://www.tvokids.com/school-age/xavier-riddle-and-secret-museum/videos/i-am-george-washington-carver
- https://www.tvokids.com/school-age/xavier-riddle-and-secret-museum/videos/i-am-golda-meir
- https://www.tvokids.com/school-age/xavier-riddle-and-secret-museum/videos/i-am-alexander-graham-bell
- https://www.tvokids.com/school-age/xavier-riddle-and-secret-museum/videos/i-am-louis-pasteur
- https://www.tvokids.com/school-age/xavier-riddle-and-secret-museum/videos/i-am-harry-houdini
- https://www.tvokids.com/school-age/xavier-riddle-and-secret-museum/videos/i-am-isaac-newton
- https://www.tvokids.com/school-age/xavier-riddle-and-secret-museum/videos/i-am-johann-sebastian-bach
- https://www.tvokids.com/school-age/xavier-riddle-and-secret-museum/videos/i-am-marie-curie
- https://www.tvokids.com/school-age/xavier-riddle-and-secret-museum/videos/i-am-mary-shelley
- https://www.tvokids.com/school-age/xavier-riddle-and-secret-museum/videos/i-am-susan-b-anthony