Complete the task

Cross out the odd word or phrase in each line. Choose the correct category for each set of words.

1. [Newspapers and magazines|The internet|Radio|Television]:
   • email subscription
   • call-in
   • news feed
   • social networking.
2. [Newspapers and magazines|The internet|Radio|Television]:
   • daily
   • the press
   • switch the channels
   • editor
   • front-page news.
3. [Newspapers and magazines|The internet|Radio|Television]:
   • talk show
   • sitcom
   • periodical
   • viewer
   • news reporter.
4. [Newspapers and magazines|The internet|Radio|Television]:
   • issue
   • top-ten music chart
   • on the air
   • podcast
   • news reporter.