Season (television)
Until the 1980s, most new programs for the United States were first broadcast in the "fall season". This ran from September through March. Is usually included from 24 to 26 episodes. These episodes were rebroadcast during the spring (or summer) season, from April through August. Because of cable television and the Nielsen sweeps, the "fall" season now normally lasts to May. A "full season" on a  now usually runs from September through May for at least 22 episodes.