Cspan
In short
C-SPAN is an American public-service television network that broadcasts the proceedings of the United States federal government. It provides unedited coverage of political events without commercial advertisements.
In plain words
It is a TV channel that shows what happens in the US government. It is run by the cable industry as a non-profit service. You can watch politicians speak and see government meetings live.
A simple example
If the US House of Representatives holds a debate on a new law, C-SPAN will broadcast the entire session live.
Why it matters
It allows citizens to watch government actions directly without news commentary or bias. This provides a transparent way to see how laws are made.
Easy to mix up
Do not confuse it with CNN or BBC, which are commercial news networks that add commentary and analysis.