Detroit broadcasting history is rich with character . . . and characters. It began atop the Penobscot Building on October 23, 1946, when WWDT shot a signal to the convention center, part of a New Postwar Products Exposition. WWJ-TV offered scheduled programming in June 1947, and WXYZ-TV and WJBK-TV jumped in a year later. The medium has influenced the city's personality and social agenda ever since. Soupy Sales turned getting a...