n.A continuing publication issued in installments, typically numbered and dated.Audiovisual RecordsA program with a storyline that continues through separate episodes released over time.


Each installment of a serial1 is typically called an issue. - Serials2, such as The Mask of Zorro, were common in theaters through the 1950s.


AACR2 1988 [serial1] A publication in any medium issued in successive parts bearing numeric or chronological designations and intended to be continued indefinitely. Serials include periodicals; newspapers; annuals (reports, yearbooks, etc.); the journals, memoirs, proceedings, transactions, etc., of societies; and numbered monograph series.