Step by Step is an American television sitcom created by William Bickley and Michael Warren that ran on ABC as part of its TGIF Friday night lineup from September 20, 1991, to August 15, 1997, then moved to CBS, where it aired from September 19, 1997, to June 26, 1998, with a total of 160 half-hour episodes spanning seven seasons. The series follows Patrick Duffy and Suzanne Somers who star as single parents Frank and Carol, respectively, each with three children, who wed and form a blended family.

Frank Lambert, a divorced contractor, has three children: John Thomas (J.T.), Alicia (Al), and Brendan. Carol Foster, a widowed salon owner, also has three children: Dana, Karen, and Mark. Both families live in Port Washington, Wisconsin.

Frank and Carol marry while vacationing in Jamaica after a whirlwind courtship and Frank plans an identical vacation to "accidentally" run into Carol. They planned to keep their marriage a secret, but Frank accidentally reveals to J.T. that they are married during a barbecue he and Carol hold to introduce all the children, leaving them surprised and angry at first.

Each episode depicts typical situations for a new blended family. Family members' differences cause arguments and resentments, but over time they grow to tolerate and become loyal to one another.

This section needs additional citations for verification. (January 2017)

The series was created and executive produced by William Bickley and Michael Warren, and developed and executive produced by Thomas L. Miller and Robert L. Boyett.^[2] It was produced by Bickley-Warren Productions, Miller-Boyett Productions and Lorimar Television.

ABC chose to delay the series' sixth season to the 1996–97 mid-season (premiering in March 1997), in order to make room on that season's fall schedule for freshman sitcoms Sabrina the Teenage Witch and Clueless, which joined established series Family Matters and Boy Meets World on the TGIF lineup; the network canceled it after six seasons in May 1997, due to declining ratings. CBS concurrently reached a deal with Miller-Boyett Productions to acquire the rights to it and Family Matters from ABC, as that network attempted to build its own Friday night lineup of family-friendly situation comedies for the fall of 1997, called the "CBS Block Party".^[3] The series' ratings, which had been declining for several seasons, continued to decline, and the show ended its run in June 1998. It ended without an official series finale, although the last episode centered on Frank and Carol considering selling the house. According to Staci Keanan and Christine Lakin, the series was supposed to end with Dana and Rich's wedding at the house, and elaborate preparations were underway for it prior to the series' abrupt end.^[4]

In September 1995, Warner Bros. Domestic Television Distribution began distributing the series for broadcast in off-network syndication.

ABC Family was the first to acquire cable television rights to the series, and it became one of the cable channel's longest-running off-network syndicated programs in its history. Reruns began airing on there in 2001 (on what was then known as Fox Family), airing in various timeslots during its run ranging from late afternoon to the morning hours. On March 26, 2010, ABC Family's contract expired after less than nine years.^[5]

The series returned to U.S. syndication on October 7, 2013, when the Hub Network began airing reruns;^[6] the network dropped it on October 13, 2014, when the network became Discovery Family.

In Australia, Step by Step aired on the Seven Network from 1991 to 1995 and on the Nine Network from 1996 to 2000. In 2011, Step by Step was acquired by 7TWO. In 2015, 111 Greats started airing the whole series.^{[citation needed]}

In the UK, Seasons 1 and 2 of Step by Step aired sporadically on ITV weekday mornings at 10 throughout parts of the spring and summer in 1994 and 1995.^[7] Episodes were also shown to a lesser extent during 1996 and 1997.

On September 29, 2017, Hulu acquired the streaming rights to Step by Step along with fellow Warner Bros. TV properties Family Matters, Full House, Hangin' with Mr. Cooper and Perfect Strangers,^[8] in addition to fellow ABC programs Boy Meets World, Dinosaurs and Home Improvement.^[9]

On October 1, 2021, Step by Step began streaming on HBO Max after its streaming rights expired from Hulu.^[10]

TruTV began airing reruns in 2023 as part of their "Comfort Food" block.^[11]

Warner Home Video originally released a six-episode Television Favorites collection on DVD on June 27, 2006 until September 26, 2023 when the complete series set was finally released for the first time.^[12] Warner Archive Collection has released individual seasons on DVD in Region 1.^{[13][14][15][16][17][18]} These are Manufacture-on-Demand (MOD) releases, available from Warner's online store and Amazon.com.

Reviewing the pilot episode, Jean Rosenbluth of Variety wrote that, despite being an unoriginal clone of The Brady Bunch, it is a "modestly amusing, occasionally heartwarming show".^[20]