There are lectures on Youtube, but I think Microsoft did a great job on cleaning them up and captioning them. You can find them here (link in the article does not point to the current location anymore):
Those are not the 'Feynmann Lectures' that became the books, are they? (From the titles, they seem to be different, but the videos do not play on my browser).
https://www.microsoft.com/en-us/research/project/tuva-richar...