In a continuing effort to emulate ABC's award-winning Afterschool Special, CBS tried out a series of periodic mysteries for kids, aimed mostly at teenagers.
Unfortunately, the CBS Children's Mystery Theatre, to my knowledge, didn't play in my home market. The local affiliate opted for syndicated programming instead. Only 5 episodes were produced over the course of three seasons (1980-3), which illustrates the struggles between divisions of the network's programming department.
This is strictly for your perusal, so there won't be a rating. Right now, let's take a look at 1981's "The Haunting of Harrington House", starring Dominique Dunne, Roscoe Lee Browne, Edie Adams, and sitcom vets Vito Scotti and Phil Leeds.
Polly is essentially a modern day clone of Nancy Drew, don't you think?