Beginning with Calman Zamoiski's unlicensed and short-lived "wireless telephone" station in 1921, Baltimore would boast five commercial radio stations within the next 20 years. Before the 1940s ended, commercial television appeared with the debut of WMAR, Channel 2, in 1947. WMAR was unique in that it had no personnel with television experience and, initially, no studios, broadcasting instead from various remote locations. Over the years, Baltimore...