RCA

Okay, imagine you have a toy that needs to be plugged into the wall to work. There are a lot of different kinds of plugs, like the ones on your phone charger or your lamp. RCA is just another kind of plug that is used for things like TVs or DVD players. It has three different parts that fit into three holes, or jacks, in the back of the device. These three parts help the picture and sound travel from the device to the TV, so you can watch your favorite shows and movies. Just like how you need to put the right puzzle pieces together to make a picture, you need to use the right plug to make your TV work!