[viraptor]

Well... It kind of does. The source of the radio station is a kind of flashlight, just on a different frequency. The tree is still a tree (and all the other objects)

[cloudwalk9]

More accurately a giant lightbulb, but emitting at 102.7 MHz (my favorite local radio station) rather than ~450 THz (my favorite color).

Put visible light over a really long waveguide and modulate the colors, you invented fiber optic telecommunication.