More What's My Line?

This is fun, offbeat ‘Mystery Guest’ segment of What’s My Line? -- especially if you lived in the era or watch the Game Show Network. The contestants are Bud Collyer, Allen Ludden, Gene Rayburn and Ed McMahon, who were then all hosts of TV game shows produced by the Goodson-Todman company, which also produced What’s My Line?  But what makes it all the more fun is that one of the panelists is Mark Goodson.

If you want to jump to the “Mystery Guest” segment, it starts around the 17:15 mark.

https://www.youtube.com/watch?v=cMnJOK2Lwrw