The Unknown Story

The forward-thinking of Ball and Arnaz revolutionized how television is made on multiple levels.

Taking a close look at how the seven castaways secured their place on the island.

A close look at the '70s and '80s series "Three's Company" and the changes that it underwent.

A close and intimate look at the early days of "Cheers" and the casting of memorable characters.

A close look at the elements that had to come together to make "Star Trek" a multi-season series.

A close look at the early days of what eventually became one of the most lucrative movie franchises worldwide.

The impact on audiences and critics when "The Karate Kid" premiered 35 years ago.

"Jurassic Park" and the blockbuster sequels are the highest-grossing movies in history.

"Raiders of the Lost Ark" becomes one of the highest-grossing films of all time.

Heather Langenkamp explains some of the behind-the-scenes tricks of the trade in a scene.