He-Man and the Masters of the Universe
Diamond Ray of Disappearance
TV Flash files “Diamond Ray of Disappearance” as a desk essential hour — He-Man and the Masters of the Universe (1983–1985) on Syndication, season 1, episode 1, aired 1983-09-05, 30 min.
From the desk
How this hour is filed
This leaf is S01E01: listed hour 1 of 130 in the He-Man and the Masters of the Universe guide, first listed hour of season 1. It aired 1983-09-05 (30 min). No earlier hour is listed in this guide. Next is “Teela's Quest” (S01E02).
Essential hour: “Diamond Ray of Disappearance”. Diamond Ray of Disappearance unboxes Prince Adam's secret: Filmation sword-and-sorcery, Castle Grayskull's grin, the toy aisle funding a weekly epic.

Catalog log
Broadcast listing — not a TV Flash recap.
At Snake Mountain Skeletor commands Beast Man to activate the transport beam. Within moments Evil-Lyn, Mer-Man, Trap Jaw, and Tri-Klops all appear. Skeletor reveals that the Diamond of Disappearance is now in his possession, a gem that transports whoever is looking at it into another dimension.
Viewer FAQ
Where does Diamond Ray of Disappearance sit in the He-Man and the Masters of the Universe guide?
S01E01 is listed hour 1 of 130 — first listed hour of season 1, season 1 episode 1.
When did He-Man and the Masters of the Universe S01E01 air?
Diamond Ray of Disappearance aired 1983-09-05 and is listed at 30 minutes.
Is it only a toy commercial?
Mattel synergy is the engine; Filmation still built a weekly epic. Sword-and-sorcery serial, moral-tag endings as ritual. Industrial-complex mythmaking that looks like a kid's fever dream — and yes, you wanted the figure.
In the series
Why this series still plays
By the power of Grayskull: Prince Adam's secret, Castle Grayskull's grin, and a toy aisle that learned to fund a weekly epic. Filmation's sword-and-sorcery serial defined boy-action animation and the moral-tag ending as regulation ritual. Industrial-complex mythmaking that still looks like a kid's fever dream of muscles and magic.
Syndication, 1983–1985: Prince Adam becomes He-Man to defend Eternia from Skeletor with the Masters — by the power of Grayskull, a toy commercial as epic fantasy serial. That is the chart, not a museum of muscles. He-Man and the Masters of the Universe, from Filmation, is Mattel's synergy engine: John Erwin as He-Man/Adam, Alan Oppenheimer as Skeletor and Man-At-Arms, Linda Gary as Teela and Evil-Lyn. I have the power as permanent catchphrase. She-Ra followed. Rex can keep the martini for sword-and-sorcery that…
Open the He-Man and the Masters of the Universe package · Season 1 hub
Filed against
- John Erwin as He-Man / Prince Adam
John Erwin’s He-Man / Prince Adam sold Grayskull as a weekly epic — secret identity, Castle Grayskull’s grin, a toy aisle that learned to fund a cartoon. Filmation sword-and-sorcery, moral-tag ending as regulation ritual. TV Flash files…
- Alan Oppenheimer as Skeletor / Man-At-Arms
Alan Oppenheimer’s Skeletor / Man-At-Arms dual-voiced He-Man and the Masters of the Universe into a toy-aisle epic — Prince Adam’s secret, Castle Grayskull’s grin, Filmation sword-and-sorcery, the moral-tag ending as regulation ritual. By…
- Linda Gary as Teela / Evil-Lyn
Linda Gary split the toy aisle as Teela and Evil-Lyn on He-Man and the Masters of the Universe — Filmation sword-and-sorcery with a moral-tag ending as regulation ritual. Same voice, two destinies, Castle Grayskull grinning in between. TV…