Amusement Park / Rock Stars
From The Arthur Conan Doyle Encyclopedia
Amusement Park / Rock Stars is the 25th episode in the 2nd season of the American TV series Fantasy Island, aired on 13 may 1979, starring Ricardo Montalban as Mr. Roarke and Hervé Villechaize as Tattoo.
The two stories in this episode have nothing related to Sherlock Holmes or Conan Doyle, but at the beginning Tattoo arrives disguised as Sherlock Holmes. Mr. Roarke guess that Tattoo just read some stories of the Arthur Conan Doyle's book he gave to him and that Tattoo tries to be a master of disguise. When Tattoo asked how he guessed, Mr. Roarke says « Elementary my dear Tattoo! Elementary! » Once the gag is done, Tattoo removes the costume and the real episode starts.