Hi... Thought I'd come in and help some.
The Ghost of Faffner Hall...
The show only lasted for thirteen episodes, so I guess that's why not many people talk about it. Though I don't think that'd apply, since JHH also had thirteen episodes in its entire run.
What was GOFH about...
You know how all or most of the Children's Television Workshop's shows were made to have an educational purpose or core, right? Well, it goes like this.
Sesame Street to teach basic skills like letters and numbers, and other important topics or social skills like cooperation orsharing.
The Electric Company to teach about word sounds and different terms associated with various words like homonyms or how a word can change based on the first letter placed at the beginning of a group like Junk to Shrunk to Trunk in ther Letterman animated segments.
3-2-1 Contact to teach about science.
Square 1 Television, a personal favorite of mine, to teach about all the different aspects of mathematics.
And then they went to HBO and developed two shows in conjunction with that channel...
Encyclopedia, which was done with an entirely human cast, and The Ghost of Faffner Hall. GOFH was tooled a little like classic Muppet productions in the sense that each episode revolved around a different topic designed to teach music, with a special guest star for each episode. So GOFH was a sort of melding between Muppet and CTW styles of programming, creating the educational core.
The premise was that Fughetta Faffner, a ghost, still haunted the hall as she provided tuttelage to all the musical residents. Her distant living relative, Farkas Faffner, was now the legal owner of the hall and hating music, he wants to put an end to all the musical goings-on.
The hall was populated by new characters and old from both TMS like Boppity and the Flower-Eating Monster to SS with appearances by the Dinger.
Hope this helps and have a good weekend.