Complex sentence: Throughout the 1960s and 1970s, she did guest roles on television, and has been retired since the mid- 1980s, although she made a brief, uncredited appearance in "Flubber", the 1997 remake of "The Absent-Minded Professor".
Split into simpler sentences: Throughout the 1960s and 1970s, she did guest roles on television. Olson has been retired since the mid- 1980s, although she made a brief, uncredited appearance in "Flubber", the 1997 remake of "The Absent-Minded Professor".