Complex sentence: She played a continuing role, that of Nurse Wilcox, the efficient head nurse, in the television series "Medical Center" from 1972 until 1976 and her most recent television appearance was in a 1987 episode of "Murder, She Wrote".
Split into simpler sentences: She played a continuing role, that of Nurse Wilcox, the efficient head nurse, in the television series "Medical Center" from 1972--76. Her last acting role was in a 1987 episode of "Murder, She Wrote".