If you had frustrations with the old newsletter subscription page, this might be worth a second try.
Or, if you never gave much thought to that green rectangle there in the right margin, now you know.
It's hard to tell from the preview, but mainly what you get in the newsletter is links to recent blog posts and the clip playlist of the previous night's show. For a lot of people, checking e-mail is a more natural part of their daily online workflow than reading RSS feeds or remembering the visit the site every day. If I'm talking about you, this newsletter is what you're looking for.