Reading Rainbow was a multi-award-winning children's show which aired on PBS from 1983 to 2009. Hosted by actor LeVar Burton, the show's goal was to encourage reading among children.
Kermit the Frog appeared in Episode 3.5, "Perfect the Pig" (July 5, 1985), in which Burton ran into him at a library (in the "pig" section, mysteriously...). Mark Saltzman scripted Kermit's segment.
Kevin Clash appeared in Episode 5.4, "Brush" (August 18, 1988), in which he discusses puppetry with the host, and Burton's puppet likeness. After Burton gets to try out the puppet, neither he nor Clash are manipulating the character, when it seemingly comes to life on its own. Martin P. Robinson is credited on the episode as "Special Thanks," likely meaning he was puppeteering the Burton puppet at the end of the segment.
Kermit introduces Burton to pig classics.
Burton, the puppet and Clash.
Guest readers and contributors
Marv Albert provided narration for "The Milk Makers" by Gail Gibbons
Jason Alexander provided narration for "Pet Stories You Don't Have to Walk"
Ed Asner provided narration for "Dinosaur Bob and His Adventures With the Family Lazardo"