T4 is a scheduling slot on Channel 4 (T4 Saturday usually 9am until 2pm) and E4 (T4 Sunday usually 9am until 5pm). It also airs on weekdays in the school holidays. The slot has a separate station identification on screen graphic from Channel 4 and E4. The logo of T4 is noticeably the top right segment of the standard Channel 4 logo. Channel 4 originally produced the strand in-house until 2002, when production was passed onto independent companies. The slot is targeted at the 16-34 age group.

Until 25 March 2012, T4 aired on Channel 4 both Saturday and Sunday, however, to make way for the introduction of Sunday Brunch in March 2012, T4 Sunday was moved to run on E4; T4 Saturday will remain on Channel 4, and some programmes that previously appeared within the T4 block, such as The Simpsons, will remain on Channel 4 on Sunday afternoons.

Early on in T4's run, programmes aimed at children often aired in addition to the content aimed at older viewers, with shows such as CatDog and 2 Stupid Dogs appearing in the early schedule of the strand. Around 2001, this was dropped and the strand refocused entirely towards the teen/youth market. For the first few months of T4's life, its idents consisted of an animated spaceman like character. In 1999, this character instead appeared on the idents during the early morning pre-school shows, in addition to the weekend children's programmes that fell outside the T4 strand. These idents continued in use until 2004.

Channel 4 is a British public-service television broadcaster which began transmission on 2 November 1982. Although largely commercially self-funded, it is ultimately publicly owned; originally a subsidiary of the Independent Broadcasting Authority (IBA), the station is now owned and operated by Channel Four Television Corporation, a public body established in 1990, coming into operation in 1993. With the conversion of the Wenvoe transmitter in Wales to digital on 31 March 2010, Channel 4 became an entirely UK-wide TV channel for the first time.

The channel was established to provide a fourth television service to the United Kingdom in addition to the television licence–funded BBC's two services and the single commercial broadcasting network, ITV.

At the time the fourth service was being considered, a movement in Wales lobbied for the creation of dedicated service that would air Welsh-language programmes, then only catered for at 'off peak' times on BBC Wales and HTV. The campaign was taken so seriously by Gwynfor Evans, former president of Plaid Cymru, that he threatened the government with a hunger strike were it not to honour the plans.

Channel, Channels, and similar terms may refer to:

Peter "Pete" Alexander Bennett (born 22 March 1982) is an English singer, author and media personality, who won the reality television series Big Brother 7 in 2006. He has Tourette's syndrome. He currently splits his time between Brighton and London.

After unsuccessfully auditioning for the 5th series of Big Brother in 2004 (as seen in Vanessa Nimmo from Big Brother 5's tape on launch night), Bennett was selected as one of the original housemates for the 7th series in 2006. He was the bookmakers' favourite throughout and eventually won with 61.2% of the final vote. The show has been accused of exploiting Bennett's Tourette's syndrome: The TSA UK claimed "the broadcaster had deliberately cast someone with relatively strong symptoms in order to make him a 'figure of fun'." Some viewers expressed concern that the show had exploited Tourette's, while others felt it was educational and criticised the hypocrisy of TSA UK for wanting the syndrome brought to the public consciousness but complaining when it was. Bennett was nominated for a National Television Award in 2006 for "Most Popular TV Contender", however former Big Brother contestant Nikki Grahame won the award.

Leona Louise Lewis (born 3 April 1985) is a British singer and songwriter. Lewis came to prominence in 2006 when she won the third series of the British television series The X Factor.

Lewis has released two albums to date, Spirit and Echo, in 2007 and 2009 respectively. A multi-platinum selling artist and three-time Grammy Award nominee, her most successful single, "Bleeding Love", reached number one in over thirty countries around the world, and was the best-selling single worldwide in 2008. Other notable singles include "Better in Time", "Happy" and "I Got You". She was proclaimed 'Top New Artist' by Billboard magazine in 2008.

Lewis's debut tour, The Labyrinth, took place in 2010, and her third album, Glassheart, is scheduled for release in 2012. It was preceded by "Collide", a single from the album, which became her seventh top-five hit in the United Kingdom. Lewis's net worth was estimated at £12 million in April 2012.