The length of series episodes varies greatly but meets programming requirements linked to the changing needs of television channels over time.
- 90-MINUTE FORMAT: this format is intended for prime time programming. It consists of either single-episode dramas (TV movies) or mini-series (2 to 4 episodes of 90 minutes). There are also mini-series consisting of 4 to 8 episodes of 52 minutes. Mini-series are generally scheduled either weekly or over several consecutive days.
- 52-MINUTE FORMAT: Originally in the US, an hour of programming consisted of 52 minutes of programming + 8 minutes of advertising. Today, the length of so-called 52-minute episodes can vary greatly (40 to 52 minutes or even longer). In the US, each season consists of 13 or 26 episodes (divisor of 52 weeks) depending on whether the series is intended for pay TV channels (13) or major networks (26). This format is generally reserved for prime time and scheduled weekly. These are more likely to be dramas, thrillers, or action series than comedies.
- 26-MINUTE FORMAT: This format was created to fill half an hour in the programming schedule (26 minutes of programming + 4 minutes of advertising). Here too, the length of episodes can vary greatly (20 to 26 minutes). This format is generally reserved for broadcast in access prime time and for daily programming. These are mostly comedy series, comedies, or comedy dramas (sitcoms or soap operas). They are produced in large numbers, with up to several hundred episodes.
- OTHER FORMATS: All other short formats lasting from 2 to 13 minutes are generally used around news programs or before prime time to build viewer loyalty or attract new viewers. These are usually comedy programs that can also be broadcast with the same objective within other programs (talk shows, entertainment, etc.).
- SELF-CONTAINED SERIES: Each episode consists of a story that ends and can be watched almost independently of the other episodes. This type of series makes it possible to attract new viewers who can enjoy the program even if they discover it by chance.
- SERIAL SERIES: the different stories continue from one episode to the next, creating significant audience loyalty. Conversely, viewers who do not engage with the series are excluded for the entire duration of the program's broadcast.
See also: Francophone African production: current situation and prospects