IESB recently spoke to Mark Hamill about the Star Wars TV series he's rumoured to be involved with. Here's a clip from the article.

He explained that he has not heard an official word from Lucasfilm or even if Kevin Smith is involved. When asked if he would be interested in once again portraying Luke Skywalker on the small screen he quoted James Bond by saying "Never Say Never." He also mentioned that a Star Wars TV series would be a good idea since it could concentrate on the story instead of the special effects.

You can also check out an interview conducted by IESB with the actor here (windows media, 6 mins, 8.5mb). Thanks to Eddie for the alert.