Take a minute and think about some of the best sitcoms of our generation. Go ahead, take your time, there are plenty to choose from.

That's because network television really hit its prime during the early '90s and '00s when shows like Cheers, Friends, Seinfeld, The Office, That 70's Show, Married... With Children, The Golden Girls, Parks and Recreation, and about 20 others could all make the list of the ten best sitcoms of the past 40 years.

It's much easier to the good ones because of how many memorable moments they gave us. From the always hilarious Friends Thanksgiving episodes to the crazy antics of Michael Scott on The Office, these great sitcoms will always be ed.

However, for every television sitcom that becomes a hit, there are several of them that never even got a chance. The failed sitcoms that were unable to connect to an audience because of poor writing, bad acting, or just bad timing. Not every show that makes it on television is a guaranteed hit.

This list features the 25 Worst 2000s Sitcoms Ever (According to Rotten Tomatoes) and might even bring back a bad memory or two for those unfortunate souls that had to endure the pain of sitting through them.

Joey (56%)

For some reason or another, NBC decided to renew the Friends spin-off series Joey for a second season following a pretty good first season, ratings wise that is. It is not fair to look at the first season and think there was a hit show there because of when it debuted. It aired a few months after the greatest sitcom in NBC's history ended, Friends, and was put into their Thursday night lineup right away, grabbing nearly 11 million viewers a week.

But once the second season began, it did not take NBC very long to discover that it was failing so they moved it to Tuesday night's, opposite American Idol. The hit FOX reality show grabbed just about all the viewers it could and left Joey with a tiny audience that eventually stopped watching, sending it on a one-way track to cancellation city.

Accidentally On Purpose (32%)

It only took 18 episodes before Accidentally on Purpose was cancelled following a myriad of mixed reviews from critics and audiences that were forced into watching it when it aired following the hit series, How I Met Your Mother. Part of the reason the show was such a hit at first was due to the high number of viewers, nearly 8 million per episode, but that was a result of being the bookend to a show considered to be the best sitcom at the time.

After being moved to Wednesday night's, it failed to carry its own audience due to a lackluster story designed to make us believe Jenna Elfman being pregnant with a much younger man's child, and then having him move in with her and her friends, was a real life scenario. But, in fact, it did not relate to most of the viewers and numbers declined each week until cancellation.

How To Be A Gentleman (27%)

CBS has had several hit television sitcoms over the past 20 years. Everybody Loves Raymond, The King of Queens, Big Bang Theory, How I Met Your Mother, and Two and A Half Men were some of the biggest sitcoms on television over the past few decades and they all aired on CBS. But for every hit TV show they discovered, there were several that just simply did not work and ended up getting canned relatively quickly.

How To Be A Gentleman was one of those shows. It was so bad that even when it premiered during CBS's Monday night comedy block, it failed to bring in a large enough audience to remain there. It couldn't keep the viewers interested long enough to hold them over between hit shows and lasted just nine episodes.

Imaginary Mary (25%)

There is a very big difference between reality and fantasy, and Imaginary Mary did a great job at the latter. In fact, it was so far fetched that audiences never even came close to enjoying the sitcom because of how much it failed to relate to anyone over the age of 10. The concept was that an adult woman would have an imaginary friend named Mary, which was a CGI creature voiced by Rachel Dratch.

But the Imaginary friend was so ridiculous, and fake, that it felt cheap and boring. The pilot episode had about 5.4 million viewers but that number dramatically decreased to around two million by the ninth episode, when the show was cancelled.

Rush Hour (24%)

Chemistry is something you cannot teach. It happens naturally and is not to be forced. This is especially true when it comes to TV shows that feature stars that simply do not have chemistry. Audiences will notice right away and respond quickly.

So when CBS decided to create a television show based on the blockbuster film Rush Hour, they did not plan on failing to find two main characters that could carry the show the same way Chris Tucker and Jackie Chan carried the film series. In fact, the show tanked and was cancelled after just 13 episodes due to the lack of chemistry between Justin Hires and Jon Foo. They could not replicate, or even come close to, the relationship between Tucker and Chan.

Gary Unmarried (23%)

As we mentioned earlier, CBS might be the nation's number one network, but it was not because they always happened to strike gold with a new show. They have had to air many different series before finally landing a hit show and Gary Unmarried was one of those series that helped pave the road for the hits that followed.

After a decent first season, in relation to the various other sitcoms airing at the time, Gary Unmarried was renewed for a second season, but that was a big mistake. However, the show did manage to win the People's Choice Awards Favorite New Comedy award in 2009. That alone convinced the show's front runners to bring it back for a second season. They simply did not expect the writing and overall quality of performances to be so awful.

One Big Happy (21%)

NBC spent about ten years trying to figure out how to develop a television show, involving gay characters, that could bring in the amount of success they found with Will & Grace. They had such a hard time figuring out a way to reach that audience that they ended up just going back in time and giving Will & Grace a reboot, which has been a huge hit and is into its second season.

One of the failures was One Big Happy, a show starring the beautiful Elisha Cuthbert as a lesbian that was pregnant with her male best friend's baby. The problem was, he was madly in love with a straight woman, played by Kelly Brook. It just did not work because all they did was the opposite of Will & Grace, and it was nothing short of a bomb. It ended after one season.

Whitney (20%)

As a comic, Whitney Cummings is one of the funniest comics around today. Her comedy is sometimes crude and raunchy, but she is still a big enough star to carry a fan base of loyal followers. That is her biggest problem. People either love her, or they simply do not get her and find her annoying. The majority of the viewers of her television show, Whitney, were the latter.

The show's downfall was forcing the comedy, something we expect from a sitcom. The writing was a bit weak and came across as if this was the first time any of them wrote in television. In other words, the show's concept and original idea was probably way better than the actual product thanks to being a sitcom on NBC. If it had been on FX, chances are it would still be around today.

Bad Judge (20%)

Kate Walsh is one of the better, and most underrated actresses around. She was so good on Grey's Anatomy, that she got to continue playing the role of Dr. Addison Montgomery, on her own show, Private Practice, which was another major hit for the network.

But when Private Practice ended in 2013, she just had to keep working and decided to take on the role of Rebecca Wright in NBC's Bad Judge. The idea that a raunchy, dirty, party chick could also play the role of a judge turned into a nightmare for the writers as NBC simply did not allow her to really go after the role and it got cancelled less than a month after it premiered.

Are You There, Chelsea? (18%)

Just because a book is a best-selling title, does not mean it can become a hit television series. The main reason is that the audience that watches television is very different from the ones that read books daily. But another reason could be because the content just simply is not funny enough to act out in a sitcom on NBC.

Are You There, Chelsea? was never going to be a hit show because the content did not belong on NBC. The raunchy humor was toned down for network television, which basically ruins the content and delivery, but that was not enough. They had to go ahead and bring in Laura Prepon to play the lead role, which is supposed to be a woman in her early 20s, when she was in her mid 30s at the time. It just failed to connect with audiences and was cancelled in one season.