On August 5, 1921, Pittsburgh hosted the first baseball game broadcast over the radio. Harold Arlin, a foreman at Westinghouse, announced the game over KDKA from a box seat next to the first base dugout at Forbes Field. Throughout the 1920s and 1930s "occasional" games would be broadcast, until Rosey Rowswell became the first "Voice of the Pirates" in 1936. While most of Roswell's early broadcasts were solo, he was joined by Pirates' co-owner Bing Crosby and his successor Bob Prince for games. Prince took over as lead broadcaster in 1955 and held the position over the next 20 seasons. Prince gained a reputation for giving players nicknames and inventing catchphrases to describe the game; he was inducted into the National Baseball Hall of Fame and Museum in August 1986. In 1976, Lanny Frattare became the Pirates' lead broadcaster. Frattare held the position for 33 years—the longest tenure of any Pirates' broadcaster. Upon Frattare's retirement after the 2008 season, Greg Brown took over the role as lead broadcaster. Multiple people have held temporary positions as broadcasters, including former players Don Hoak, Dave Giusti, Willie Stargell, and Pittsburgh Penguins' broadcaster Mike Lange.
WWSW-FM broadcast Pirates' games on the radio during the 1940s and 1950s until KDKA became the franchise's flagship station in 1955. In 2006, the Pirates switched to WPGB in an attempt to reach younger age brackets; under the current contract WPGB will carry Pirates' games though the 2011 season. As of 2009, the Pirates Radio Network has stations located in Pennsylvania, Ohio, West Virginia, and Maryland; WPGB is scheduled to broadcast all 162 games of the Pirates' 2009 season.FSN Pittsburgh televised 125 games during the 2008 season, and is scheduled to broadcast the same number in 2009. Starting with the 2012 season, KDKA-FM takes over as the flagship station of the Pirates Radio Network.