I'm not sure but recalling how it looked from the mini-series onwards I would have assumed it was shot in HD from the start. But I don't know 100%.
I don't even know when I'll get a chance to go through it. I snapped it up because it was being sold online new for a very good price and I went for it. It's harder to find in stores now and wanted it before it got too rare. I also picked up 'Firefly' on Blu Ray dirt cheap as well but haven't gone to it yet. Though it'll take less time obviously.
'If the Apocalypse starts, beep me!' - Buffy Summers
'The sky's the limit.....' Jean-Luc Picard, 'All Good Things'
courtesy of Saquist