At the end of the 60's, it was thought that there was still an audience for medical dramas. CBS had Medical Center. ABC answered with Marcus Welby, M.D..
Welby served as a comeback vehicle for Robert Young, who esentially had reinvented his on-screen image after he'd been known for Father Knows Best years earlier. Marcus Welby was your neighborhood clinician, who looked after your families with the utmost care and concern. His assistant, Dr. Steven Kiley (James Brolin), was a bit of a rebel, as he rode on a motorcycle. He represented what was then the "Now Generation".
The series housed a back-door pilot for Owen Marshall, Counselor-At-Law, which, unfortunately, didn't have the same kind of staying power. Given the subject matter of many of the episodes, you can understand why, despite the fact that children were often patients at risk on the show, it never aired before 10 pm (ET).
Following is "Child of Silence". The poster is named for guest star Lois Nettleton.
Dawn Lyn was better known for being cast on My Three Sons near the end of that series' run, but was hardly heard from afterward.
No rating. I have little memory of actually watching any episode to merit a rating.