You will need to check about 300 videos if they work (play the video). If it doesn't you'll need to write it down.
Than you'll go to two competitors sites with same videos and check if they have any new videos. If you do find new videos you'll need to get their stream address (extremly easy, I'll show you).
Will not take you more than few hours. You need to run Windows (XP or Vista) for the videos to work.
I will need someone to do this twice a month. Please bid now for the first time.