Algorithm video tutorial [closed]

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There are quite a few algorithm lectures on the web, but what I'm looking for is a video tutorial where I can watch somebody coding on screen, going from a blank document to an algorithm that solves a problem. Language doesn't really matter. There are lots of video tutorials like this about a certain language, but is there one that teaches an algorithm?

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Conway's Game of Life coded in one line of APL is pretty good. The video starts from a blank screen and builds the code up live in the interpreter. Although it's a specific problem, the steps in involved in the construction are very instructive. I thought it was an amazing demo.

http://www.youtube.com/watch?gl=GB&hl=en-GB&v=a9xAKttWgP4&fmt=18

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I would highly recommend the Introduction to Algorithms video lecture series by Charles Leiserson, the L of the standard Algorithms textbook, CLRS. He works out several fundamental algorithms in pseudocode.