Video lectures on Group Theory
http://www.youtube.com/user/LadislauFernandes Has uploaded quite a few videos on introductory group theory.
I have not watched that much of any of them though, so I can't say much about the quality (the bit I have watched seemed ok. A bit slow, but that might just be because this is not new stuff to me).
http://www.extension.harvard.edu/open-learning-initiative/abstract-algebra
These are some excellent videos by Harvard professor Benedict Gross. They are not specifically about group theory but they do cover group theory to certain extent.
Regards.
Have you checked out out any of Ben Garside's over a hundred videos? They're pretty detailed.
https://www.youtube.com/playlist?list=PLAvgI3H-gclb_Xy7eTIXkkKt3KlV6gk9_