The upcoming TNG complete series box set has a bonus disc of unique features, interviews, and documentaries. Though there is some unearthed arcana from decades ago, much of the material is retrospective in nature, created exclusively for this DVD collection.
It can be fun to look at the making of Star Trek: TNG as it was actually being made. Without the benefit of hindsight, documentaries that are as old as the show they're inspecting have a certain nostalgic quality. And who brings that magic to life better than LeVar Burton, host of Reading Rainbow?
Before (and while!) he was Geordi LaForge but after Kunta Kinte, Mr. Burton hosted this PBS children's educational series that explored the power of books, fiction, and imagination. He took advantage of being an explorer of both space and imagination when he brought the show he hosted behind the scenes of his "other" show. Now available on YouTube as a three-part series is that episode of Reading Rainbow.
So open the video — and open your mind.
Also in the TNG at 20 series: