How does a television work?

The television receives wirelessly transmitted electromagnetic waves and converts them into acoustic and light energy for viewing.
3 colours go through a ring a the move very fast around the screen. and produces sound waves through speakers
A tv has tiny pixels that travel with lectricity to your house.
== Answer == A number of experimental and broadcast pre World War II systems were tested. The first ones were mechanical based and of very low resolution, sometimes with no sound. Later TV systems were electronic.
A television is a box.3 red ,blue and green colours r used and they go through lets say a ring it moves the colours very fast around the screen to sho thw picture.