Complex sentence: She is probably best known, however, for her long-running role as Barbara Hunter, née Brady, in the soap opera "Crossroads", beginning in 1975, and she remained in the role until 1985.
Split into simpler sentences: She is probably best known, however, for her long-running role as Barbara Hunter, née Brady, in the soap opera "Crossroads". She first appeared in the series in 1975, and she remained in the role until 1985.