By Denise Martin, Times Staff Writer The "Battlestar Galactica" finale is upon us, but save your tears for Friday. Now's the time to marathon the entire series, to really hunker down and try to make sense of it all
. Har. Not. The better way to celebrate is to partake in our unofficial BSG drinking game, which we suggest playing with Ellen Tigh's fluorescent beverage of choice Ambrosia (Gatorade, in a pinch) or the strong brown stuff favored by Admiral Adama (tea, if you're really committed to plowing through all 70 hours). Glasses raised? Here we go! So say we all.