Animation Nation was a series of three excellent BBC documentaries covering the history of British animation. In this sequence Richard Williams discusses The Charge of the Light Brigade.
Here are some other sequences that have turned up on YouTube:
Animation Nation – The Art of Persuasion Part 1 – 1
Animation Nation – The Art of Persuasion Part 1 – 2
The Art of Persuasion starts with what is believed to be the worlds first stop motion animation film. It was made in 1899 by British pioneer Arthur Melbourne Cooper, of St Albans, for Bryant and May matches. It then looks at the wartime propaganda films of Halas and Batchelor. It also covers the work of the Larkins Studio, Bob Godfrey/Biographic and Aardman. The speakers include Ken Clark, who wrote many articles for Animator magazine during the 1980s.