Television first came some sixty years ago in the 1950s. Nowadays, it is one of the most (13) _________ sources of entertainment for both the old and the young. Television brings (14)__________for children, world news, music and many other (15)_________. If someone likes sports, he can just choose the right sports (16)_________. It is not difficult for us to see why (17)_________ is a TV set in almost every home today.