Alright, obviously there are much bigger and more important things to discuss, but I'm a huge sitcom nerd!
The theme song was a parody of Happy Endings which is sort of kind of a cult classic sitcom from 2011-2013. It wasn't the most popular, but people who watched it loved it! Obviously not the same kind of success and fame/notoriety as Arrested Development or Community but honestly it is basically on the same level imo.
Part of what makes it significant though is that it was one of the three sitcoms the Russo Brothers were a significant part of before joining Marvel and making Winter Soldier, Civil War, Infinity War, and Endgame.