Spoiler notes: There are no more regular episodes of BSG after tonight, so I'm tweaking the policy slightly to reference future spin-offs (the upcoming series Caprica and the standalone TV-movie The Plan, for example). I am also removing the reference to spoiler-boxing previews, because it was really only a consideration as we approached the end of the series, and every glimpse into the future became more and more significant; I agreed to spoiler-box previews out of consideration for those who wanted every last moment of the dwindling number of episodes to arrive pristine. With a new series, I don't think that will be necessary any more. So...
Spoiler policy: If you want to discuss a future plot point from not-yet-released BSG spin-off material (TV or direct-to-DVD movies, subsequent TV series, comic books, etc), something you know is going to happen because it's been revealed in interviews or some other canon source, put it in a spoiler box, and label the box so we can decide for ourselves whether or not it's something we want to know. If you're simply speculating about what might happen in upcoming spin-off material, or if you're discussing something that has already aired (including previews/promotions for those spin-offs), there's no need for a spoiler box.
Sample spoiler demonstrating "label" concept:
You probably saw the announcement that comics publisher Dark Horse is starting a new series entitled "Boxey: Porn Star." The title of the first issue has been leaked--[spoiler:3ky5rps4]Hung Like a Daggit.[/spoiler:3ky5rps4]
This week's episode title: "Daybreak," Part Two. Written by Ron Moore; directed by Michael Rymer. This is the two-hour series finale. Actually, on the schedule, it runs eleven minutes over two hours, so if you don't yet have a DVR and are recording via manual scheduling, please take episode length into account.
Regarding episode numbering, see comment here. Note also that on the scifi/battlestar site, this is officially episode 422, despite what's found on other sites.
Sci-Fi's preview for the episode. Re the alternate preview from Canada's Space network, I scoured YouTube and came up blank.
Note there is also an hour-long special, sort of a retrospective farewell thing, that's been airing the last few days and will get a couple more repeats. I haven't seen it so I can't address its spoilerosity. I'm TiVo-ing it and will watch it later.
Discussion of previous episodes can be found on The Other Board at this link.
Side note: In last week's thread, I said I'd be starting two threads, one a live-watch-along and one for post-airing discussion. I've since rethought that; I don't know how necessary it will be, since the traffic here suggests it will amount to maybe a page's worth of posts. If there's disagreement on this, then let's talk.