Original sentence: A second one-hour Portland television special Quarterflash In Concert was broadcast on KOIN on October 221981, and simulcast on KGON.This concert was taped at the Paramount Theatre on October 151981
Edited sentence: A second one-hour Portland television special Quarterflash In Concert was broadcast on KOIN on October 22,1981, and simulcast on KGON.This concert was taped at the Paramount Theatre on October 15,1981