I rate this highly because I happened on summer to see these when CBS ran them as a Sunday Night replacement series. CBS did this a lot on Sunday Nights as they would replace one of their variety shows during the summer with different shows. Among other replacements like The Glen Campbell show, and Hee Haw, this one had a special flavor.
At the time I did not realize the Canadian roots this series had. Much the same way as I did not realize Monty Hall was Canadian until I made a deal years later. What this show did was take 2 hosts, Wayne & Schuster, who were behaving like a comedy team, had had them hosting retrospective looks at some great entertainment of the 20 century.
Every show I saw was funny and well done. While the hosts were seldom serious, the show did seem to put together some of the best clips of the subject(s) the show had a theme built around. The purpose of the series was to present clips of folks from W C Fields to the Marx Brothers and more and show the audience how great these people could perform.
An hour would breeze by and I like them so much I always tried to catch the next show. I enjoyed them so much that I was hoping CBS would bring them back again. I believe they did in 2 summers but then Wayne & Schuster disappeared, much to the viewers loss.