Answer:
advantages
telivision is a type of communication through which a single person as politician, scientist, any film star or any kind of personality can communicate there message at once to billions of people at once.
and we can also gather new knowledge be watching and listening as it is said that gathering knowledge from books is very very boring but gathering knowledge by watching and listening is very much valuable. we can take virtual classes through tv too, there are many shows for that as toppers, discovery, and etc.
now through telivision we can too watch and learn about other religions and cultures of all around the world.
disadvantages
there are some channels on telivision in which family dramas or serials comes too.
and they make them so interesting that in mind always one thing goes on that what would happen in the next episode ant that is not good for student's future.