This can be found on the SciFi Channel's BSG website, but is likely blocked to anyone not in the U.S.
It is a short video that summarizes the entire Battlestar series to date.
It's pretty complete, fast paced, insightful, and fraking funny to boot.
I ripped it in the raw FLV format to avoid any further quality loss since it was encoded for web streaming.
The best way to play an FLV file is with VLC or with Media Player Classic and a properly configured ffdshow codec (google it).