1977 Nancy Drew Mysteries Episode 1 Mystery of Pirate's Cove

In 1977 I was 13 years old and one of my favorite TV shows was The Hardy Boys/Nancy Drew Mysteries which aired on ABC. I loved reading The Hardy Boys books and was excited that there was a TV show. And, I developed a big crush on Pamela Sue Martin. Now...for your viewing pleasure...here is the first episode of the Nancy Drew Mysteries:
Original Airdate: February 6, 1977. The Mystery of Pirate's Cove.
Written by: E.W. Swackhaker; Directed by: Glen A. Larson.
Nancy Drew and her friends see a beam of light coming from a supposedly abandoned lighthouse, and a professor tries to convince her that it is haunted. The local sheriff thinks they're imagining things, so it's up to Nancy to solve the mystery. First appearance of Pamela Sue Martin as Nancy Drew.