What's the red glowing circle inside of my tv?

Question

Whenever my tv is on, you can see a little red glowing circle. Is there any hazards?

Answer 1

I would guess it is an LED (light emitting diode) that is there to allow the people who assembled it to verify that a certain circuit or system was working correctly.

They are just left in the TV because removing them is to expensive.

These are common in complex electronics, they exist in the equipment I work on every day.