The following is the 1970–71 network television schedule for the three major English language commercial broadcast networks in the United States. The schedule covers primetime hours from September 1970 through August 1971. The schedule is followed by a list per network of returning series, new series, and series cancelled after the 1969–70 season. All times are Eastern and Pacific, with certain exceptions, such as Monday Night Football. This was the first time that the top rated show of the season aired on ABC. 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. PBS, the Public Broadcasting Service, was in operation by October 1970; however, schedules were set by each affiliated station. In April 1970, Congress passed a law banning the advertising of cigarettes on television and radio, effective January 2, 1971. This season would be the last one for the traditional 3½-hour prime time schedule. Sunday Monday Note: NBC Comedy Theater featured repeats of Bob Hope Presents the Chrysler Theatre, with new introductions by Jack Kelly. Tuesday Wednesday Notes: Love on a Rooftop consisted of reruns of the series, which originally aired during the 1966-1967 season. The Immortal consisted of reruns of the series which were shown in the fall of 1970. The Men from Shiloh formerly was entitled The Virginian. Thursday Notes: The Dean Martin Summer Show Starring Your Host Vic Damone consisted entirely of reruns of the show of the same name from the summer of 1967. NBC Action Playhouse featured repeats of Bob Hope Presents the Chrysler Theatre, with new introductions by Peter Marshall. Friday Saturday By network ABC Returning Series The ABC Sunday Night Movie ABC Movie of the Week Bewitched The Brady Bunch The Courtship of Eddie's Father The F.B.I. The Johnny Cash Show The Lawrence Welk Show Let's Make a Deal Love, American Style Marcus Welby, M.D. The Mod Squad Nanny and the Professor The Newlywed Game Room 222 That Girl This Is Tom Jones New Series Alias Smith and Jones Barefoot in the Park Dan August Danny Thomas in Make Room for Granddaddy The Immortal It Was a Very Good Year * Matt