The following is the 1966–67 network television schedule for the three major English language commercial broadcast networks in the United States. The schedule covers primetime hours from September 1966 through August 1967. The schedule is followed by a list per network of returning series, new series, and series cancelled after the 1965–66 season. New fall series are highlighted in bold. Each of the 30 highest-rated shows is listed with its rank and rating as determined by Nielsen Media Research. Yellow indicates the programs in the top 10 for the season. Cyan indicates the programs in the top 20 for the season. Magenta indicates the programs in the top 30 for the season. Note: This is the first full season in which practically all prime time programs were broadcast in color. NET or National Educational Television, was in operation, but the schedule was set by each affiliated station. Sunday Note: On NBC, Animal Secrets consisted of reruns of the series, which originally aired on Saturday afternoons from October 1966 to April 1967. Monday Note: To Tell the Truth replaced The Jean Arthur Show on December 12. Captain Nice replaced The Roger Miller Show on NBC on January 9, the same night the similar Mister Terrific replaced Run, Buddy, Run on CBS. Both series were cancelled by their respective networks at the end of the season. Tuesday Note: The Pruitts of Southampton was renamed as The Phyllis Diller Show starting on January 13, 1967. Wednesday Thursday Note: The Tammy Grimes Show lasted only four weeks and was replaced by The Dating Game on October 6. Friday (*) Formerly known as The Pruitts of Southampton Saturday By network ABC Returning Series 12 O'Clock High ABC Scope The ABC Sunday Night Movie The Avengers Batman Bewitched The Big Valley Combat! Dark Shadows The Dating Game F Troop The F.B.I. The Fugitive The Hollywood Palace The King Family Show The Lawrence Welk Show Peyton Place Saga of Western Man Texaco Star Theatre (moved from NBC) Voyage to the Bottom of the Sea New Series ABC Stage 67 The ABC Wednesday Night Movie Felony Squad The Green Hornet Hawk The Invaders * Iron Horse Love on a Rooftop Malibu U * The Man Who Never Was The Monroes The Newlywed Game The Picadilly Palace * The Pruitts of Southampton Rango * The Rat Patrol The Rounders Shane The Tammy Grimes Show That Girl The Time Tunnel