This was the television schedule on all three United States commercial television networks for the fall season beginning in September 1970. All times are Eastern and Pacific, with a few exceptions, such as Monday Night Football.

New fall series are highlighted in bold.

The highest rated program of the season is highlighted in lime green. The top 10 most-watched shows are highlighted in yellow. The top 20 most-watched programs are colored in cyan.

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 tobacco products on television and radio starting on January 2, 1971.