SMTV Live (an abbreviation of Saturday Morning Television Live), also written SM:TV Live and in early promotional material SMTV://live, was a British Saturday morning children's television programme, first broadcast on ITV on 29 August 1998 and last broadcast on 27 December 2003.

On the surface, the programme did not seem to stray away from the format of other Saturday morning output, featuring an audience of children, competitions and cartoons, though it constantly won in ratings battles with the BBC's Live & Kicking and became ITV's most successful children's programme since Tiswas. SMTV's success has been attributed in equal parts to Ant and Dec's original presenting partnership with Cat Deeley, its use of thinly veiled comedic innuendo aimed at older viewers, and its broadcast of the Japanese cartoon series Pokémon. At the height of its popularity, SMTV Live regularly attracted 2.5 million viewers. Ant & Dec's company Gallowgate currently owns the rights to the show.

SMTV Live featured many sketches, many of which parodying popular TV shows of the time, some of which became staple to SMTV itself.

Anthony McPartlin (born 18 November 1975) and Declan Donnelly (born 25 September 1975), known collectively as Ant & Dec, are an English comedy and TV presenting duo from Newcastle upon Tyne, England. The duo first rose to fame as actors on the children's television show Byker Grove, during which and in their subsequent pop career they were respectively known as PJ & Duncan – the names of the characters they played on the show. Since then, Ant & Dec have had a very successful career as TV presenters, presenting shows such as SMTV Live, Friends Like These, Pop Idol, Ant & Dec's Saturday Night Takeaway, I'm a Celebrity...Get Me Out of Here!, PokerFace, Push the Button, Britain's Got Talent, Red or Black? and Text Santa. They have also returned to acting, starring in a 2002 Tribute to The Likely Lads and the 2006 film Alien Autopsy.

Ant is the taller of the two at 5'8" (1.73 m) and Dec is two inches shorter at 5'6" (1.68 m). It is a running joke that many people do not know who is Ant and who is Dec, even though their appearances differ significantly. To assist with identification, they follow the 180 degree rule; all their TV appearances and publicity photos have Ant on the left and Dec on the right, but even this does not help everyone.

Catherine Elizabeth "Cat" Deeley (born 23 October 1976) is an English television presenter and model. Since 2006, Deeley has also been the host of So You Think You Can Dance in the United States, for which she received a nomination for the Primetime Emmy Award for Outstanding Host for a Reality or Reality-Competition Program, As of 2008 she is also the face of Pantene shampoo in the UK.

Deeley was born in Sutton Coldfield, Birmingham. She attended Grove Vale Junior School in Great Barr Sandwell, followed by Dartmouth High School in Great Barr, where she played the clarinet in the Sandwell Youth Concert Band. She then joined the sixth form at Bishop Vesey's Grammar School.

At age 14, Deeley entered a regional edition of a BBC competition for The Clothes Show, in which she reached the national finals. Spotted by an agent for Storm modeling agency at age 16, she was quickly signed as a model under her nickname of Cat to make it easier for clients to re-book her.