When I was growing up in L.A., it was Vin Scully and Jerry Doggett announcing for the Dodgers. When the game was televised, they would switch every few innings, one of them doing radio, the other TV. But if the game wasn't televised, they would work as a team on radio.
Doggett was a good announcer, and seemed to have every stat imaginable right at his fingertips, even though it was decades before broadcasters had the help of computers.