The 1958–59 United States network television schedule was for the period that began in September 1958 and ran through March 1959. According to television historians Castleman and Podrazik (1982), the networks' schedules were thrown "into complete chaos" by the quiz show scandals that erupted during fall 1958. At first only one series, Dotto, was implicated in the game-fixing charges. Ed Hilgemeier, a contestant on the program, filed a complaint with the show's sponsor, Colgate-Palmolive. Colgate withdrew its sponsorship of the Tuesday evening (on NBC) and daytime (on CBS) versions of Dotto, and the show did not appear on either network's fall 1958 schedule.