Great tape of Britt, a brilliant man who flamed out (but who was one of Boston's first TV anchors and host of the first "magazine" style news show, WHDH's Dateline: Boston)
The tradition of having home team announcers join the No. 1 network team on TV and the visitors join the backup team on radio began an 18-year unbroken streak with White Sox (Brickhouse) vs. Dodgers (Scully) in 1959 and continuing through the Yanks (Scooter) and Reds (Marty Brennaman) in 76. Prior to 59, sometimes they did use the competing teams announcers on TV and sometimes they did not. Mel Allen did the games in 58 with Curt Gowdy, who was the Sox voice, In 57 Yanks-Braves series, it was the Dodgers Al Hefler and Allen . In the Yankee-Dodgers series of 55 and 56, it was Allen and the Dodgers Scully. In the 54 Giants-Indians Series, New York's Russ Hodges did the games but with Chicago's Brickhouse. Allen and Scully did 53 Yanks-dodgers and Allen and Chicago voice Jack Brickhouse did the same teams in 52, also NYY vs BKN.
Prior to 52, four networks (including Dumont) had a piece of the series.
On radio, the use of the two cities announcers (along with the network's No. 2 guy) ended after the 78 Dodgers-Yankees series with the Yank's Bill White and KABC's Ross Porter the last participating city tandem, concluding a streak that had run continuously from '66 when Scully and Baltimore's Chuck Thompson called Dodgers-O's. The 65 Twins-Dodgers series had By Saam of the Phils and Joe Garagiola of Yankee flagship WPIX-TV. Prior to that it was sponsor's favorite (which sometimes matched a team that was in the Series) with occasional exceptions such as Waite Hoyt with the 61 Reds (Hoyt, a stickler for accuracy, broadcast in past tense -- "he threw the ball to first," "he chased the ball and caught it"), and Earl Gillespie with the Braves in 57 and 58 as well as the Indians Jimmy Dudley in 54, ("over this, the Mutual Broadcasting System") Beginning in 79, CBS's 4th year with the radio rights, it was Scully, then Jack Buck until Buck moved to TV and then Scully again until the end of the CBS contract as Entertainment Sports Programming Network took over and used its house announcers to the present day.
Sponsors had considerable impact on the announcers in the 40s and 50s as they wrote the checks and often held the rights fees, especially Gillette nationally and beer companies regionally.