Well, unprepared may be the wrong word. Be we sure were unprepared. Surprise tests may be better wording.
It's a show with four episodes of one and a half hour. Tells the story of some of the important moments with Kennedy(s). Also gives a look into their private lives. It's based on reality, but some things may not be true, but at least it's a great drama and everything, very well made.
Ah now you mention it I did see an episode a while back. I think that's the same one.
Exams - hopeless at exams. They're just way too stressful and when you're under that stress you can't concentrate very well.