Try different keywords.
Here's an Incredible video that I just recently caught on youtube. Looks like it was recently added, too. Thanks to Skratchworx for uploading this!
My personal highlight is the interview piece where Marley Marl is mentioning how Shante's Mom was making her do laundry during their attempts to record "Roxanne's Revenge."
Also we get some footage of a young Queen Latifah who is about to drop her debut record, "Princess of the Posse." What's up with 45 King's awkward hand gesture at 4:05? I can picture the people filming saying "act natural, like we're not even here."