Chris occasionally covered the overnight shift for a Chicago radio station years before the Jamz was written. Jim would set alarms on his phone for the middle of the night so he could call in.
The bar scenes were filmed at Kingston Mines in Chicago.
Because of a tight shooting schedule and location availability, all of the office scenes (which take place during the day) were filmed overnight. Ironically all Jay-Jay & Fitzy's studio scenes (which take place overnight) were filmed during the day.
The frequency 101.7 was chosen deliberately, as it's an unused frequency in Chicago.
The role of Clancy was named after the director of the original web series, who is also a Chicago firefighter.