The article discusses the top ten details from the TV show Friends that can only be noticed by those who have watched the show before. These subtle details add depth and enhance the viewing experience for fans of the show.

The first detail is the "Ugly Naked Guy," a character who is frequently mentioned but never seen. He lives across the street from the main characters and is known for his eccentric behavior. Only avid viewers would know about his existence, as he is never shown on screen.

The second detail is related to the apartment numbers. Throughout the series, the apartment numbers of Monica and Chandler, as well as Joey and Chandler, change.

This subtle change may go unnoticed by casual viewers, but fans of the show would pick up on this inconsistency.

The third detail is the iconic Central Perk coffeehouse. Regular viewers may notice minor changes in the layout and design of the coffee shop throughout the seasons. These changes reflect the evolution of the set design over the ten-year span of the show.

The next detail focuses on Phoebe's twin sister, Ursula. Phoebe often mentions her sister, who has her own storyline in the show "Mad About You.

" Casual viewers may not be aware of this connection, but fans of the show would recognize the cross-over.

The fifth detail relates to the character of Janice, Chandler's on-again, off-again girlfriend. Janice is known for her distinct voice and frequent use of the catchphrase "Oh. My. God." Only those who have watched the show before would truly appreciate the humor and annoyance that Janice adds to the series.

The next detail revolves around the character Gunther, the barista at Central Perk who has a crush on Rachel. Gunther's unrequited love for Rachel is a recurring theme throughout the show, but it may not be apparent to new viewers.

The seventh detail is Chandler's job. Throughout the series, Chandler's job is vaguely mentioned, but it is never revealed until later seasons that he works in statistical analysis and data reconfiguration - a fact that longtime viewers would be aware of.

The next detail involves Joey's frequent habit of saying "How you doin'?" as a pick-up line. This iconic catchphrase is known to fans of the show and is often referenced in popular culture.

The ninth detail is the song "Smelly Cat," which Phoebe frequently sings. The catchy tune became an instant hit among fans, and its popularity is a detail that only devoted viewers would recognize.

The final detail focuses on the show's opening credits, which feature the six main characters in various New York City locations. Each character has their own signature move during the theme song, and avid viewers would notice these subtle details.

In conclusion, the article highlights ten subtle details in the TV show Friends that can only be noticed by viewers who have watched the show before. These details range from unseen characters to catchphrases and set design changes. For fans of Friends, these details add depth and enhance the viewing experience.