The idea of spinoffs and remakes isn’t new in Hollywood, in fact, it has been popular and successful for a long time. Recently, the number of shows being remade has been increasing, and spinoffs of old favorites have become increasingly popular.

The types of shows are being remade are not limited; sitcoms, reality, crime and even children’s shows have reappeared recently, some with great success and others lasting only a few episodes. Some of the most well-known remakes and remakes in the process are The X Files, 90210, and Hawaii Five-O.

The reboot of The X Files was confirmed in January 2015 by Fox, in a release stating that they were in the logistical phase of bringing back the show. The original series aired between 1993 and 2002, and focused on FBI Agent Fox Mulder, originally played by David Duchovny. His interest in the paranormal led to his confinement to working on “X” Files. His work was coupled by what began as assessment by FBI Agent Dana Scully, played by Gillian Anderson, that eventually turned into a collaborative partnership.

According to FOX, Anderson and Duchovny will return to their roles. It is scheduled to be released in January 2016.

A show that has had immense success in appearing a second time is Hawaii Five-O. The original show ran from 1968 to 1980, and stars some of the show’s original actors as minor characters. The remake premiered in 2010, and currently running its sixth season, according to imbd.com.

The show follows Steve McGarrett, played by Alex O’Loughlin, and his partner Danny Williams, played by Scott Caan, and the rest of their elite police force in investigating and solving crimes on the islands of Hawaii. According to tvbythenumbers.com, the show has had over 10 million viewers in each of its seasons thus far.

An exceedingly popular spinoff was of the original Beverly Hills, 90210.  The original show aired from 1990 to 2000, and followed the lives of a group of friends living in the prestigious Beverly Hills, California. The show also addressed significant social issues, and really started gaining popularity in its second season, according to imbd.com.

The spinoff, entitled 90210, began airing in 2008 and showed through 2013. Much like the original show, this remake followed the lives of Beverly Hills students throughout their high school and adult lives. It even starred some of the same actors that were in the original show.

While these are some of the well known TV remakes, Hollywood is filled with titles that have been seen before. “It is only natural to turn to familiar titles because they attract attention,” said Warren Littlefield, a former NBC programmer to the New York Times.

Despite the attention that most remakes and even spinoffs originally receive, most of them don’t end up lasting for nearly the length of the original show, according to The New York Times. Spinoffs last longer than remakes, but for the most part neither remakes of TV shows, nor spinoffs have had lasting success. So why continue making them?

“For starters, there’s the ever-important buzz that follows the initial announcement of these projects. From the inevitable “good idea or bad idea” debate to the numerous unsolicited casting suggestions, a TV remake instantly garners more press and attention than any other new series,” said Kevin Fallon, a writer for The Atlantic.

Regardless of their success, TV remakes and spinoffs will always be a large part of Hollywood, as they draw attention and interest from old and new viewers alike. While their successes and failures may change, their intrigue and prominence in the industry will remain constant.