If skeletal system is the subject when was it first aired?
CREATE TABLE table_191105_3 (first_aired VARCHAR, subject VARCHAR)
SELECT first_aired FROM table_191105_3 WHERE subject = "Skeletal system"
### Context: CREATE TABLE table_191105_3 (first_aired VARCHAR, subject VARCHAR) ### Question: If skeletal system is the subject when was it first aired? ### Answer: SELECT first_aired FROM table_191105_3 WHERE subject = "Skeletal system"