Take a look back at some of the more memorable casting changes in the history of television.
As Harrison's character was gradually phased out during season six, in came nurse Terri Alden, played by Priscilla Barnes, who would stay for the show's final three seasons.
Library of Congress
iStock / amete
iStock / LawrenceSawyer
Wisconsin Dept. of Natural Resources
Enrique Castro-Mendivil / Reuters
It's easy to upload your photos and/or videos on News8000.com. Once you do, we'll share your upload with the community!