CREATE TABLE table_28111 ("Series #" FLOAT, "Season #" FLOAT, "Title" TEXT, "Director" TEXT, "Writer ( s ) " TEXT, "Airdate" TEXT)

Who wrote the episode that aired December 1, 1956?
SELECT "Writer(s)" FROM table_28111 WHERE "Airdate" = 'December 1, 1956'
SELECT "Writer(s)" FROM "table_28111" WHERE "Airdate" = 'December 1, 1956'