CREATE TABLE "table1_191105_3" (
  "episode_title" text,
  "subject" text,
  "music_by" text,
  "performed_by" text,
  "first_aired" real
);

Question: When interplanet janet is the episode title who is the music by?
SQL: SELECT "music_by" FROM "table1_191105_3" WHERE "episode_title"='Interplanet Janet';

Question: WHen jaime aff and christine langner are the performers what is the subject?
SQL: SELECT "subject" FROM "table1_191105_3" WHERE "performed_by"='Jaime Aff and Christine Langner';

Question: If skeletal system is the subject when was it first aired?
SQL: SELECT "first_aired" FROM "table1_191105_3" WHERE "subject"='Skeletal system';

Question: When zachary sanders is the performer what is the lowerst first aired?
SQL: SELECT MIN("first_aired") FROM "table1_191105_3" WHERE "performed_by"='Zachary Sanders';