Oh, I didn't think about the music for The Muppet Show, and the clips for Muppet Babies.The Muppets Take Manhattan and Muppets from Space are apparently both owned by Sony, not Disney. Copyrights for music and film clips seem to be holding back The Muppet Show and Muppet Babies. No idea what's holding back Dinosaurs, which was released on Hulu in 2017, but isn't there now.
I didn't realize those two movies were owned by Sony, I had assumed everything Muppet related was with Disney at this point.
Are the music rights different for DVD and streaming? The first 3 seasons of The Muppet Show have all been released on DVD, and before those were released there were a whole bunch of Best of... DVDs with episodes from throughout the whole series.