*Help* Need episode teasers for school *puppyeyes*

[navy_cis]

I'm in desperate need of help. I need episode teasers, two of them, for a schoolproject that's due in Monday morning. I need to make a Mediaplayer with two videos and three songs. I've already got the songs, so now it's just about the videos. They have to be .avi files and I need to have the actual file on my computer, because otherwise it won't work.
If anyone knows where I can find any, I'd be really grateful, might even bow down and kiss your feet or you know... anything else  you can think of.