The idea for the series started as a simple concept about two friends who were lazy drifters trying to succeed in life. The concept even started under the title "The Chesterfield Murphys." Eventually, the title was changed and the concept was developed into what it eventually became.
A scene featured in an early trailer shows Penny sitting in the man cave with her grandmother. However, the scene ended up on the cutting room floor as did the grandmother character. Early drafts of season two reintroduced the character and was meant to be a key player in the season, but the character had to be written out due to health reasons.
Even though it took over four years for another season to premiere, it wasn't due to one particular thing. Numerous factors came into play that led to constant delays in the production.