Big Brother has been going on for more than 18 years with 20 seasons! Talk about amazing.

It's simple really. If you've ever read George Orwells "1984," you'd know that "Big Brother" is always watching. That is the premise of this reality TV show.

Now, you might be asking yourself, "Isn't that what all reality TV shows are?" Well, yes, all reality TV has nonstop cameras on the people in the shows. However, this show is about battling it out to win $500,000. America watches and decides who their favorite person is. That person receives $25,000. Not to mention second place gets $50,000.

This...probably isn't making a whole lot of sense to you. Let me break it down for you.

16 complete strangers are thrown into a house together. (They have to be over the age of 21.) Take a look at this year's house!

In the show, there are multiple challenges a week. The first is called HOH, short for Head of Household. Whoever wins this competition is then "in charge" of the house for the week. They put two guests on the chopping block to be voted out of the house.

Think of all the house guests as a jury. Except in this case, it isn't the cold hard facts that give the people on the chopping block the verdict. It's whether or not people like you.

Next, we then have the POV contest. POV is short for Power of Veto. Whoever wins the POV gets to either remove someone from the chopping block or leave nominations the same. Regardless, whoever wins cannot be placed on the chopping block as a nominee.

Each competiton varies. Some of them are mind games where they've had to memorize things the night before. Others could be physical challenges where they have to balance on a platform as water is being thrown on them. Some are just plain luck.

I've watched this show since I was (roughly) 10, so it is appropriate for all ages. It's not only fun to watch, but it also teaches some valuable lessons.

There's much more to the show than just this, but you'll have to watch it to find out.

If you think you're interested in watching this years season, tune in on Wednesday, June 27 at 8 pm (ET) on CBS. I promise, you don't want to miss it.