A single-camera setup is like taking pictures with one camera instead of many. When people make TV shows or movies, they usually use more than one camera to film each scene from different angles. But with a single-camera setup, they use just one camera and move it around to get different shots. It's like taking one picture at a time instead of many all at once. This can be helpful because it allows the people making the show or movie to get really specific shots and make everything look just right. Plus, it can be easier to work with just one camera instead of many.