Generally, you can use a projector as a TV, but you may need various hardware to make it work. TVs and projectors aren't interchangeable. A TV has built-in tuners to receive broadcasts while a projector doesn't. However, you can stream your favourite series and play games using a project.
To use your projector as a TV alternative, you might need a cable box to watch over-the-air broadcasts. A projector requires a streaming device like Google Chromecast or Roku Express 4k+ to stream online shows. If your projector has native apps, you may be able to run a streaming app directly on it without needing a separate device. Check out our complete guide to projectors vs TVs here.