A typical season for a television show season lasts 22 weeks with 22 episodes. However, some shows may only have 13 weeks per season, airing 13 episodes in the fall and 13 in the spring, instead of filling one season with reruns.
The fall season tends to run from September until May, while the summer or spring season runs from April until August. Reruns tend to play during the summer season, while new episodes run during the fall season, depending on the specific show. Most shows take a short winter break during the Christmas season, airing new episodes once more in January of the next year.