DavidMichaelLettermanisanAmericanformertelevisionhost,comedian,writer,producer,andactor.Hehostedalatenighttelevisiontalkshowfor33years,beginningwiththeFebruary1,1982,debutofLateNightwithDavidLettermanonNBC,andendingwiththeMay20,2015,broadcastoftheLateShowwithDavidLettermanonCBS.Intotal,Lettermanhosted6,028episodesofLateNightandLateShow,surpassingfriendandmentorJohnny...(展开全部)　　DavidMichaelLettermanisanAmericanformertelevisionhost,comedian,writer,producer,andactor.Hehostedalatenighttelevisiontalkshowfor33years,beginningwiththeFebruary1,1982,debutofLateNightwithDavidLettermanonNBC,andendingwiththeMay20,2015,broadcastoftheLateShowwithDavidLettermanonCBS.Intotal,Lettermanhosted6,028episodesofLateNightandLateShow,surpassingfriendandmentorJohnnyCarsonasthelongest-servinglatenighttalkshowhostinAmericantelevisionhistory.In1996,DavidLettermanwasrankedNo.45onTVGuide‍ '​s50GreatestTVStarsofAllTime.　　Lettermanisalsoatelevisionandfilmproducer.Hiscompany,WorldwidePants,producedhisshowandformerlyproducedTheLateLateShowwithCraigFerguson.WorldwidePantshasalsoproducedseveralprime-timecomedies,themostsuccessfulofwhichwasEverybodyLovesRaymond,currentlyinsyndication.