CREATE TABLE table_25800134_1 (writer_s_ VARCHAR2, airdate VARCHAR2)

Who wrote the episode that aired December 1, 1956?
SELECT writer_s_ FROM table_25800134_1 WHERE airdate = "December 1, 1956"
SELECT "writer_s_" FROM "table_25800134_1" WHERE "December 1, 1956" = "airdate"