

I've noticed in older anime (70's-early 90's), before each cut a black line on
the bottom (or white scratches on top) would appear in the picture, and I've
noticed this in tokusatsu as well. Does anyone know what this is? I've mainly
seen anime and toku from Toei, so I'm not sure if this was a thing unique to
them.

[![From Transformers: The
Headmasters](https://i.stack.imgur.com/LHRca.jpg)](https://i.stack.imgur.com/LHRca.jpg)

[![From
Jetman](https://i.stack.imgur.com/4HLYs.jpg)](https://i.stack.imgur.com/4HLYs.jpg)

[![From Transformers: Zone
](https://i.stack.imgur.com/pPeRh.jpg)](https://i.stack.imgur.com/pPeRh.jpg)


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2017-11-27T00:29:02.450
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2017-11-27T19:40:12.090
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question
anime-production transformers
Why do black lines appear at the bottom of older anime?