How do they turn black and white shows into color?

Question

How do they turn black and white shows into color?

In: Technology

Answer 1

They don’t? Maybe you can provide an example that led you to question?

Answer 2

1. Take a colourfully vibrant picture.
2. Turn it to grayscale
3. note which colour turns to which shade of grey
4. apply it in reverse to an originally grayscale picture
5. profit