Conversation so far:
What was Buddy Hackett's first job?
While a student, Buddy Hackett worked as a tummler entertaining guests in the Catskills Borscht Belt resorts.
Are there any other interesting aspects about the Buddy Hackett article?
While as a tummler entertaining guests in the Catskills Borscht Belt resorts, Buddy Hackett began performing stand-up comedy in the resort nightclubs as Butch Hacker.
Was Buddy Hackett's stand-up comedy in the Catskills Borscht Belt  resort nightclubs as Butch Hacker well received?
Buddy Hackett appeared first at the Golden Hotel in Hurleyville, New York, claiming later he did not get one single laugh.
Did Buddy Hackett have any flops?
In 1954 the playwright Sidney Kingsley asked Buddy Hackett to appear on the New York stage, including Viva Madison Avenue (1960) - which was a flop, although Hackett was favourably reviewed.
did Buddy Hackett have any other castings in his early career besides Viva Madison Avenue?
Buddy Hackett appeared as a panelist and mystery guest on CBS-TV's What's My Line?.
Did Buddy Hackett appear on any other shows besides What's My Line? and Treasure Hunt?
Buddy Hackett became known to a wider audience when he appeared on television in the 1950s and '60s as a frequent guest on variety talk shows
What type of talk shows did Buddy Hackett appear on?
Buddy Hackett was a frequent guest on both the Jack Paar and the Johnny Carson versions of The Tonight Show.
Was The Tonight Show a talk show Buddy Hackett appear on frequently?
According to the board game Trivial Pursuit, Buddy Hackett has the distinction of making the most guest appearances in the history of The Tonight Show Starring Johnny Carson.

Question: any thing else notable?
Self-contained rewrite: Any thing else notable about Buddy Hackett besides first job, stand-up, flops, Viva Madison Avenue, What's My Line?, talk shows, and The Tonight Show?