[ludwigvan]

Not Lisp, but Haskell, but still a nice intro: http://channel9.msdn.com/shows/Going+Deep/Lecture-Series-Eri...

[gtani]

(not lisp, but clojure:)

http://alexott.net/en/clojure/video.html

http://vimeo.com/search/videos/search:functional%20programmi...

(there's lots for F# and haskell on channel9, and for scala, erlang, scheme elsewhere, and a few for OCaml)

[jamesbritt]

Since up-voting is no longer a way to show public support I'll add my enthusiams for this series.