At the heart of these shows are their charactersmemorable, flawed, and endlessly relatable.

While the show often reinforces stereotypes rather than challenging them,The Big Bang Theoryremains an entertaining series.

Neil Patrick Harris steals the show as Barney Stinson inthis classic ensemble comedy.

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The series strikes just the right balance of complicated and wholesome relationships with hilarious moments sprinkled throughout the seasons.

For instance, Ted and Barney have relationships with Robin, placing them all in difficult positions.

Malcolm in the Middlewas highly influential, demonstrating what a new era of iconic sitcoms could achieve.

Sheldon and Leonard playing video games in ‘The Big Bang Theory’

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The show repopularized the single-camera format in sitcoms, paving the way for sitcoms likeScrubsandThe Office.

(Zach Braff) as he navigates life as a young doctor.

faces the challenges of patient care, relationships,s and personal and professional growth.

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Thebeloved medical TV dramacaptures the rewarding yet taxing nature of a career in the field.

The character dynamics play out in such an entertaining way, especially J.D.

Conflict arises both outside and within the study group through imaginative storylines throughout the series.

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The show masterfully blends meta-humor, sharp satire, and pop-culture references with its vibrant characters driving the storyline.

With episodes like G.I.

Jeff, a parody in which most of the episode is animated in a 1980s G.I.

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Joe animation style,Communityhas been an innovativevoice in rising comedy tropessuch as self-referential humor.

The show explores the parks department employees adventures and relationships within and outside the department.

For Liz, these people could make or break her show.

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Its Always Sunny in Philadelphiastands out because it breaks traditional sitcom rules with unapologetic audacity.

Nevertheless,The Officekeeps viewers engaged.

The show has its share of heartwarming moments and evolving relationships.

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NEXT:The Best Halloween Episodes From 2000s Sitcoms, Ranked

Sarah Chalke, Zach Braff and Donald Faison in ‘Scrubs’

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Amy Poehler as Leslie Knope points finger guns and smiles in Parks and Rec

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Tina Fey and Alec Baldwin Stand Together in 30 Rock, playing Liz Lemon and Jack Donaghy

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Mac McDonald, Charlie Kelly, Dennis Reynolds & Dee Reynolds at a reunion It’s Always Sunny in Philadelphia

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Michael Bluth (Jason Bateman) watches his family mock him with bad chicken impressions in ‘Arrested Development’.

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Dwight (Rainn Wilson) heats a door handle with a torch in ‘The Office’

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