Anyone know an approximate number of TV episodes that aired?

Based on some conjecture, I'm guessing about 250 (not counting radio shows of course)

Don't forget that for a little over five months in 1952, the show aired three times a week in a 15-minute format.

What a long interesting history this show had!

interesting question. I watch this show sometimes on JLTV, even though I'm not Jewish. Good show. I believe it ran from 1949 to 1956. How many episodes they made I do not know.