To complete the text, here are the correct answers for each of the gaps:

1. (1) **A. cheap** – Television is often seen as an affordable source of entertainment.
2. (2) **A. news** – This fits well as television provides news content.
3. (3) **C. sports** – Sports is a major content category brought by television.
4. (4) **C. popular** – This word describes the widespread acceptance of television.
5. (5) **D. there** – This refers to the ubiquity of TV sets in homes today.

So the completed text would read as follows:

"Television first came some sixty years ago in the 1950s. Nowadays, it is one of the most (1) **cheap** sources of entertainment for both the old and the young. Television brings (2) **news** for children, world news, music and many other (3) **sports**. If someone likes sports, he can just choose the right sports. (4) **popular** is a TV set in almost every home today. (5) **there**."