basically what happens on bid day is you will all meet your pi chis at norman field, where you recieve your bid card, but won't be able to open it. your pichis will tell you when you can open it. All the girls open their bid cards together and then madness ensues! it's absoluetly insane. Girls running everywhere, screaming.....
Fun stuff.
Oh and video round is where you go back to the 6 (maybe 7, i forget) houses of your choice, and you watch a little video that they prepare for you about their sisterhood. Ours is gonna be killer!

Other schools call it "skit night" and usually act out the skits themselves.