Ralph Bellamy as a Panelist on WHAT'S MY LINE?
March 2, 1958.
May 18, 1958.

I agree, it was a classy and entertaining show. Here is another with Ralph Bellamy.

It's fascinating watching all of these "What's My Line" segments showing the great stars of the past. The sad thing is that nearly all of them are gone now. I remember watching the shows as a child and then a teengaer in the mid 50s into the 60s, but I seem to recall the panelists more than the stars now. I remember being annoyed by Bennett Cerf and Dorothy Kilgallen, but now I like them. As for the stars, I can vaguely remember a series that Ralph Bellamy was in in the 1950s. I just wish we had all of the "What's My Line" shows, especially those of some of my favorite baseball players and movie stars. And I guess there were some stars that chose not to appear on the show. For example, I don't recall (from those available today) seeing Burt Lancaster or Clark Gable.
Those stars that particularly stand out as I watch the show now are James Cagney and Sophia Loren.