They may have made it with a wider aspect ratio in mind. A lot of sci-fi tv shows have been doing that in the last few years. I know the last season of Buffy was shot, at least somewhat, in a wider ratio and all last season of Smallville was shot in a wider ratio.

With widescreen tvs proliferating, it's not to much of a stretch to think that they filmed it in widescreen already.

I was thinking about why they made it a movie instead of going directly to TV the other day. The only reason I could come up with is because they couldn't find a home for it initially. I remember Lucas said in a recent interview that nobody wanted it. That seems like a perfect reason for putting it in theaters instead.

I believe it's only the first couple of episodes that are tied together into a movie. After that, the rest is suppose to be on TV.