Thank you, Video-Cellar. Seems to have good picture/sound (I hope I'm correct).

I do not know if this was shown in classrooms or not. I do, however, though that this is an enjoyable, if dated, documentry on Skylab.

I'd certainly recommend it to those interested on the mission, though they should remember that, being a vintage documentry, some parts may have been disproven/no longer true.

Nevertheless, a good and fun thing to watch. Slow-paced but not too dull.