Harry Caray's stamp on the team is perhaps even deeper than that of Brickhouse, although his 17-year tenure, from 1982 to 1997, was half as long. First, Caray had already become a well-known Chicago figure by broadcasting White Sox games for a decade, after having been a St Louis Cardinals icon for 25 years. Caray also had the benefit of being in the booth during the NL East title run in 1984, which was widely seen due to WGN's status as a cable-TV superstation. His trademark call of "Holy Cow!" and his enthusiastic singing of "Take me out to the ballgame" during the 7th inning stretch (as he had done with the White Sox) made Caray a fan favorite both locally and nationally.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): How long had Caray been a St Louis Cardinals icon?
25 years