''A group of Family Matters fanatics''
Like omg, can you make up ANY research at all if you are going to copy a video and post it on this site?
They are all friends over the internet and decided to meet up, make a epic video for the fans, but mostly so they could meet in person and have fun.
They just went to the Urkel house because it would be a fun thing and posted a video about it to entertain (they are Internet entertainers, ALL of them) and then a arrogant fool finds the video and think they went to Chicago to JUST find the Urkel house and calls them fanatic fans?
I mean if anyone went to Philadelphia for some reason, decided to run the ''Rocky stairs'' if you saw it, it doesn't make you the most hardcore Rocky fan in the world, its just a fun thing to do.