Not to derail this into TAS, but, honestly, Filmation's "animation" was no more sophisticated in 1980 than it was in 1973. The only difference with Flash Gordon was that they produced a TV movie first. which had a higher budget than the series and for which many of the stock elements (re-used endlessly) were created, and for which they used physical of models to create many of the spaceship shots (the same technique used to create the B-17 [link] and Taarna landscape overflights in Heavy Metal) . I just looked at some clips from the TV movie version and it's largely the same old move into pose and freeze stuff that typified TV animation of the era. Heck, in the industry, the joke used to be that "Filmation animation" was an oxymoron...not that Hanna Barbera was any better. 
