Morticia (Carolyn Jones) and Gomez (John Astin) see Fester (Jackie Coogan) conferring with TV muscleman Jack LaGrann (guest star Jack LaLanne), and think that Fester is planning a television career. However, Uncle Fester confides to Lurch that he has to go on a secret diet and exercise, because his Follies Bergere pen pal is coming for a visit.
source
