Britain's Brainiest was a British quiz show which began as a one-off special produced by Celador for ITV1 named Britain's Brainiest Kid. A further series of one-off specials (eg Britain's Brainiest Cabbie, Britain's Brainiest Teacher) followed in early 2002 in turn followed by a full series of Britain's Brainiest Kid later in the year. This full series was not deemed successful enough for further new series to follow.
2001–2002[]

The Brainiest
|
---|
A Sony Pictures Entertainment format
United Kingdom (original) | Armenia | Australia | Azerbaijan | Belgium (Dutch | French) | Denmark | France | Finland | Georgia | Germany | Greece | Italy | Japan | Lebanon | New Zealand | Poland | Portugal | Russia & Ukraine | Singapore | Sweden | Turkey | Ukraine | Vietnam (National | Regional) ![]() |