Rainbow is a British children's television series, created by Pamela Lonsdale, which ran between five times weekly, twice weekly and once weekly at 12:10 on Tuesdays and Fridays on the ITV network, from 16 October 1972 to 6 March 1992 (with repeated episodes only continuing to be shown until December 1992). It was intended to develop language and number skills for pre-school children, and went on to win the Society of Film and Television Arts Award for Best Children's Programme in 1975.

The programme was originally conceived as a British equivalent of long-running American educational puppet series Sesame Street. The British series would be developed in house by Thames Television, and had no input from the Sesame Workshop.

After more than 1000 episodes, the series came to an abrupt end when Thames Television lost its ITV franchise at the end of 1992. Since then, it has gained cult status and continues to get frequent mentions on radio and television.

Each episode of Rainbow revolved around a particular activity or situation that would arise in the Rainbow House, where the main characters lived. Usually it would involve some kind of squabble or dispute between the puppet characters of Zippy, George and Bungle, and Geoffrey's attempts to calm them down and keep the peace. The main story would be interspersed with songs (usually from Rod, Jane and Freddy, although guest singers would occasionally take their place), animations, and stories read from the Rainbow storybook, usually by Geoffrey. Some episodes would focus on a particular theme, such as sounds or opposites, and would consist mainly of short sketches or exchanges between the main characters, rather than a consistent storyline.

A rainbow is an optical and meteorological phenomenon that causes a spectrum of light to appear in the sky when the Sun shines on to droplets of moisture in the Earth's atmosphere. It takes the form of a multicoloured arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.

In a "primary rainbow", the arc shows red on the outer part, and violet on the inner side. This rainbow is caused by light being refracted while entering a droplet of water, then reflected inside on the back of the droplet and refracted again when leaving it.

In a double rainbow, a second arc is seen outside the primary arc, and has the order of its colours reversed, red facing toward the other one, in both rainbows. This second rainbow is caused by light reflecting twice inside water droplets.

The rainbow is not located at a specific distance, but comes from any water droplets viewed from a certain angle relative to the Sun's rays. Thus, a rainbow is not a physical object, and cannot be physically approached. Indeed, it is impossible for an observer to manoeuvre to see any rainbow from water droplets at any angle other than the customary one of 42 degrees from the direction opposite the Sun. Even if an observer sees another observer who seems "under" or "at the end" of a rainbow, the second observer will see a different rainbow further off-yet, at the same angle as seen by the first observer.

A television program (usually television programme outside North America), also called television show, is a segment of content intended for broadcast on television. It may be a one-time production or part of a periodically recurring series. A single program in a series is called an episode.

A television series that is intended to comprise a limited number of episodes is usually called a miniseries or serial. Series without a fixed length are usually divided into seasons or series, yearly or biannual installments of new episodes. While there is no defined length, US industry practice tends to favor longer seasons than those of some other countries.

A one-time broadcast may be called a "special", or particularly in the UK a "special episode". A television movie ("made-for-TV movie" or television film), is a film that is initially broadcast on television rather than released in cinemas or direct-to-video, although many successful TV movies are later released on DVD.

A program can be either recorded—as on video tape or other various electronic media forms—or considered live television.

series (singular/plural) may refer to anything of a serial form:

See also: sequence

Peter "Pete" Seeger (born May 3, 1919) is an American folk singer and an iconic figure in the mid-20th-century American folk music revival. A fixture on nationwide radio in the 1940s, he also had a string of hit records during the early 1950s as a member of The Weavers, most notably their recording of Lead Belly's "Goodnight, Irene", which topped the charts for 13 weeks in 1950. Members of The Weavers were blacklisted during the McCarthy Era. In the 1960s, he re-emerged on the public scene as a prominent singer of protest music in support of international disarmament, civil rights, and environmental causes.

As a song writer, he is best known as the author or co-author of "Where Have All the Flowers Gone?", "If I Had a Hammer (The Hammer Song)", (composed with Lee Hays of The Weavers), and "Turn, Turn, Turn!", which have been recorded by many artists both in and outside the folk revival movement and are still sung throughout the world. "Flowers" was a hit recording for The Kingston Trio (1962); Marlene Dietrich, who recorded it in English, German and French (1962); and Johnny Rivers (1965). "If I Had a Hammer" was a hit for Peter, Paul & Mary (1962) and Trini Lopez (1963), while The Byrds popularized "Turn, Turn, Turn!" in the mid-1960s, as did Judy Collins in 1964, and The Seekers in 1966. Seeger was one of the folksingers most responsible for popularizing the spiritual "We Shall Overcome" (also recorded by Joan Baez and many other singer-activists) that became the acknowledged anthem of the 1960s American Civil Rights Movement, soon after folk singer and activist Guy Carawan introduced it at the founding meeting of the Student Nonviolent Coordinating Committee (SNCC) in 1960. In the PBS "American Masters" episode Pete Seeger: The Power of Song, Seeger states it was he who changed the lyric from the traditional "We will overcome" to the more singable "We shall overcome".