Crossword clues for First of a series 6 lettersAnswerClueBUSHSRFirst baseman for Yale in the first two College World Series (1947/1948), familiarly (he got really famous outside of sports...)REDSOXWinner of the first World Series (as the "Americans")MSQUADLee Marvin's first TV seriesOPENERFirst in a seriesOPENERFirst of a seriesOPENERFirst event in a seriesOPENERFirst game of a seriesOPENERFirst in a playoff seriesOPENERFirst game in a seriesOPENERFirst game of the seriesSCREAMFirst of a '90s film seriesMIRIAMMrs. Maisel's first name, in the Amazon seriesOPENERFirst game, as in the World SeriesNLEASTDiv. that, in its first year of existence, produced a World Series champTHEJETSONSTV series that first aired 9/23/1962 whose family shares first names with 17-, 24-, 34- and 49-AcrossLOSTINSPACETV sci-fi series, first aired 9/15/1965, on which a robot spoke the catchphrase formed by the first words of 17-, 26- and 42-AcrossISPYBill Cosby's first seriesISPYCosby's first seriesBOSOXWinners of the first World Series, familiarlyTHESOPRANOSFirst cable series to win an Emmy for Outstanding DramaABCIts first color series was "The Jetsons"LIFEOFRILEYJackie Gleason's first TV series, with "The"PITTSBURGHPIRATESLoser in the first World Series, 1903ISPYCosby's first TV seriesTHETWILIGHTZONETV series whose first episode was titled "Where Is Everybody?"ALFFirst TV series in Dolby Surround sound (1986)HOUSTONASTROSThey won their first World Series in 2017RUPAULSDRAGRACETV series whose first winner was BeBe Zahara BenetALPHABETSeries whose first seven members are sung to the starts of 18-, 26-, 41- and 54-AcrossNBCTVFirst World Series color broadcaster, 1955MEDICFirst TV series to show a baby being born, 1955TORONTOBLUEJAYSFirst Canadian World Series champsALPHAFirst in a seriesSTEVEWith 66-Across, first in a series of five TV personalities (1954-57)HOPALONGCASSIDYFirst TV western seriesPARTIFirst of a seriesALPHAFirst of a seriesPILOTEPISODEFirst of a seriesOLAFIFirst in a series of Norwegian kingsONEFirst of a seriesALEPHFirst of a seriesSTARTERFirst in a series.ECHOIFirst in a series of satellites.PARTIFirst in a seriesSWEEPWin the first four World Series gamesSAWFirst in a series of slasher flicksOCTOBERThe 2001 World Series was the first not to end in onePILOTFirst of a seriesPBSThe Magic School Bus was its first fully animated seriesSOMEPIGFirst in a series of Web postings