Serial (radio and television)
In television and radio programming, a serial has a continuing plot that unfolds in a sequential episode-by-episode fashion. Serials typically follow main story arcs that span entire television seasons or even the full run of the series, which distinguishes them from traditional episodic television that relies on more stand-alone episodes. Worldwide, the soap opera is the most prominent form of serial dramatic programming.
15 Minute Drama
15 Minute Drama, previously known as Woman's Hour Drama, is a BBC Radio 4 Arts and Drama production. It consists of 15-minute episodes, broadcast every weekday 10.45–11.00am (i.e. at the end of "Woman's Hour" proper), repeated at 7.45–8.00pm. These tend to be plays which extend over a week, or multiple of five episodes. Occasionally, each day's slot for a week or more will be filled by single drama, linked to the others of the week by a theme.