Community has a super enthusiastic fanbase which is why the campaigning for Troy in this year's FMM led to a surprise win that put a smile on so very many faces - even those who had never watched the show.
But that's 'cause the show itself is awesome - whether its animated gifs and youtube vids directed at the casual internet browser or marathons of the series watched for the umpteenth time *cough-cough-me-cough-cough*, it makes you fall over laughing while also just feeling so darn happy, charmed and in love.
I watched the show at around the end of last year and with every repeat I noticed more cultural references, meta jokes and geek!love. Nowadays I usually play it in the background while on the laptop :D
My favorite characters are Annie, Abed and Troy but its definitely an ensemble!show. Each member of the study group brings something unique. But its also the homages to fandom loves and awesome parodies (so many that you would need to visit tv-tropes' entry to track them all) that make it memorable. Or better yet: CommunityTropes!
The links above offer glimpses of the brillance of this show and I just want to encourage y'all to give it a try. Each of the first nine episodes for season 1 showcases a member of the study group and we see the characters come into their own through to the final episodes of the season, where we get not one, but three different finales: the EPIC paintball war, the spanish final and the end of year dance.
My favorite episodes might actually be in the second season though - a Dungeons & Dragons episode that's pure awesomesauce, a Zombie!Halloween set to ABBA music of all things, and revisiting paintball for a glorious 2 part finale that pays homage to first, ol' Westerns and then Star Wars <3