Spider-Man Fan Film (Donald F. Glut, 1969)
Galaxy Trio - Ep9 "Computron Lives", Ep7 "Titan, the Titanium Man" & Ep12 "Demon Raiders" (Hanna/Barbera, 1967)
Computron's ray gun turns people into robots, and...(spoiler alert) robots into people! Also, Titan, the Titanium Man and Demon Raiders!
Captain Power and the Soldiers of the Future 11
Captain Power was ground-breaking in its use of CG effects as well as its marketing tie-ins, not to mention it was much darker and more complex than your average kids' show
Art - The Mongreloid (George Kuchar, 1978)
Shaggy and great short by the revered and sorely missed renegade of independent film, George Kuchar