It's easy to watch Apple TV+ on a computer running Windows. It's just like using Netflix, Hulu, or any other streaming service you may be familiar with — all you have to do is use your web browser.

If you want to watch NASA TV but don't have a cable or satellite subscription, you can instead tune in for free using a smart TV, tablet, smartphone, or laptop.

All you need to do so is a TV out port on your computer and the right cable. Check out the back of your PC or the sides of your laptop for an S-Video port, pictured on the right. (If you don't ...