Small tidbit on Revenge of the Mysterons From Mars

The phrase S-I-G is often heard in response to a command during this film.

I had no idea what it meant but looked it up its slag for Spectrum Is Green…kinda a catch all for its all good, or the light is green, or roger.

Not exactly a ground breaking revelation but I found it interesting.

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I think they mention it in the first episode somewhere.

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Sounds jake to me.

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S-I-G is F-A-B!

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Green, meaning go (Systems are go!) as opposed to red, meaning stop. :smiley:

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Sounds me to me too.

There’s this Devo song called S.I.B. (Swelling Itching Brain), so my mind was playing around with S.I.G… swelling itching goiter? Swelling itching gallbladder? Swelling itching gerbils?

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I think one time they said “spectrum is red”.

As I had come across Captain Scarlet before the MST3K episode I’ve already knew the SIG/SIR Spectrum is Green/Spectrum is Red before hand. It’s just one of those things I’ve taken for granted without even thinking others might not know the meaning.

and… I’ll just leave this here…

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They used to also say Supermarionation Is Green/Go.