Answer: whosonfirst

AnswerCrossword Clue
WHOSONFIRSTA question for Bud Abbott?
WHOSONFIRSTBase line?
WHOSONFIRSTClassic routine
WHOSONFIRST"Time" Best Comedy Sketch of the 20th Century
WHOSONFIRSTFamous Abbott and Costello query.
WHOSONFIRSTAbbott-Costello routine.
WHOSONFIRSTAbbott and Costello routine.
WHOSONFIRSTCostello's query
WHOSONFIRSTRoutine question
WHOSONFIRSTClassic Abbott and Costello bit
WHOSONFIRSTClassic baseball comedy routine
WHOSONFIRSTAbbott and Costello's baseball classic
WHOSONFIRSTAbbott and Costellos classic line
WHOSONFIRSTRoutine question?