Discuss khalil's answer to: Why is the size of television screens in inches?

As far as I can tell we use the metric system for everything except when it comes to television sets (size of the screen is always given in inches). Any idea why manufactures don't use the metric ...

khalil
khalil Answered:

First picture tube was made in the USA and was exported to the aound world.

So in the past people know it in inches.

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