When we talk about radio, cinema and theatre as entertainment, we use the.
- I like to listen to the radio while I’m working.
- Last night I went to the theatre.
When we talk about television as entertainment, we don’t use articles.
- He watches TV every night.
- She writes stories for television.
When we talk about television as an object in our home, we use articles.
- Don’t stand in front of the TV, I am trying to watch it.
- The TV needs repairing.