In an interview featured on the DVD release of the series, Sally Field said she and Don Porter had a father/daughter-like relationship off screen as well. Field was new to professional acting and, due to nerves and inexperience, sometimes made mistakes that caused others to laugh at her. Acting veteran Porter not only took time to explain things to Field, but often sensed things she didn't know. In one instance during a cold read of the script, the word "symbiosis" appeared in one of Field's lines. Porter pronounced the word quietly so Field would know how to pronounce it.