(written from a Production point of view)
Reading Rainbow was a television show broadcast by Public Broadcasting Service (PBS) that ran from 1983 to 2006, spanning 21 seasons and 155 twenty-minute episodes. Hosted by LeVar Burton, the goal of the show was to inspire a love of books among young viewers. Of particular relevance to Star Trek was the first episode of season 6 titled "The Bionic Bunny Show".
First broadcast on 15 August 1988, Burton took the viewers on a tour exploring the various behind-the-scenes aspects of shooting a Star Trek show. Produced during the shooting of the TNG season 1 episode "Symbiosis" (also featuring discussion of a model from "When The Bough Breaks"), it stands among the first "making-of" documentaries of TNG (the very first according to Larry Nemecek ), including interviews with Robert Legato and a blooper reel. 
In 2012, the episode was included as a bonus feature in the TNG Season 2 Blu-ray set.