question about Dark Crystal documentary clip

[Dearth]

Was there a segment about the Dark Crystal on the tv show "Standby Lights Camera Action", hosted by Leonard Nimoy?

I have this memory of a specific behind-the-scenes clip showing Frank Oz explaining the cantilevered system inside the Skeksis which would allow the weight of the puppeteer's arm to rest on his hips.

I skimmed through the documentaries on the Dark Crystal 2-disc DVD but I didn't see the specific footage I was looking for.

I used to watch SLCA a lot on Nickelodeon, so I thought maybe that's where I saw the clip.

Dearth