Question

how is TV more useful than a redio

Answer 1

as we can see all the things like 3d but in radio we can only listen
in TV webcam understand more easily what speaker want to say
but in radio it is hard

Answer 2

the following advantage of tv are
* you can see visually, but in radio you can only hear
Television is considered the heavyweight champion of all advertising mediums because... 

1. It reaches into more households and touches more people than any other medium. 

2. It uses pictures, words, sounds, and music to emotionally move and motivate prospects to action. 

3. It has the ability to capture the complete attention of your prospect. 

Television allows you to demonstrate your product or service in a visual way so that your prospects can see the benefits without having physically experienced it. 

Television alone has the ability to turn a small company into a big company in a very short period of time. It is the small business person's advertising dream that is now becoming a reality.