3. In 1980 the network was privatized and became “The Learning Channel.”
5. They showed programs like these:
- The Republican candidates for president will debate Saturday at 9 p.m. ET on CBS for the first time after Donald Trump's runaway win in the New Hampshire primaries.
- Up to 150,000 penguins may have been killed by an iceberg blocking their access to the sea.
- And how well do you know what happened in the news this week? Take our quiz.