"The Hello Girls" is a "dramedy" about a group of mostly young women working as telephone operators in the city of Derby UK, and deals with their escapades both on the job and off. The two seasons are set in 1959 and 1961, when a great many telephone operators were needed to provide satisfactory telephone service. The constant use of the expression "G-P-O" may cause a little confusion for some viewers, but the letters stand for "General Post Office," which at the time the program is set, operated the telephone system of the United Kingdom. The GPO also handled telegrams, which explains the presence of a bicycle-riding telegram boy at the exchange. The women range from just out of school to one or two who are now married and have returned to work. Two older supervisors try their best to keep them all in line