Oh yeah, Comcast has already added Sci-Fi HD and Animal Planet HD in a number of markets, but for folks in and around Boston, Massachusetts, they were still scraping by without. Buck up, you Bostonians -- as of today, Comcast has slipped the aforementioned channels into your HD lineup, though we've no idea if it plans on plugging in a few more
as it has done elsewhere
recently. Fingers crossed!
[Thanks to everyone who sent this in]