Found this television episode from the 1960s on You Tube of Canadian series named Seaway. Although it does not appear to be centered upon Great Lakes/Seaway ships, there are some seen in several background shots. It also appears that a burned out ship was used as a shooting location. Possible the Orient Trader that burned at Toronto in 1965.
https://www.youtube.com/watch?v=jCiejMlLgww