 McCarthy is one of three broadcasters to have covered both the Mets and Phillies on a regular basis (the others being Tim McCarver and Todd Kalas).McCarthy spent nearly a decade broadcasting Princeton University football and men's basketball.He was the play-by-play voice for the Tigers during their 43–41 upset win over defending NCAA champion UCLA in the 1996 NCAA tournament and during their 27–2 run through the 1997–98 season.