There was a very interesting letter to the editor in Byte magazine in the late 70's (?) that I re-read recently. It was from the guy who wrote Logo for MIT. He was really quite mad, and surprisingly candid about how MIT was screwing with his project. He claimed that he'd made a perfectly lovely, functional Logo for the Apple //, but MIT wouldn't release it. He felt like it should be released because the whole reason…
http://el.media.mit.edu/logo-foundation/what_is_logo/history...
Apparently they're still around: http://www.microworlds.com/company/profile.html
The version I used in 1983 was for the Coleco Adam computer, which uses the same video and sound chips as the TI99/4A. This version of Logo supported 32 sprites, 16 color graphics, 4 channel sound, and had a built-in sprite editor.
The language itself was quite slow, but it was very easy to come up with all sorts of interesting animations using the 32 sprites. You give a sprite a speed and direction and off it goes. It was a lot of fun and I spent many hours with it as a kid.