CREATE TABLE table_203_306 (id DECIMAL, "no." DECIMAL, "title" TEXT, "directed by" TEXT, "written by" TEXT, "original air date" TEXT)

which episode aired in the same month as antarctica ?
SELECT "title" FROM table_203_306 WHERE "title" <> '"antarctica"' AND "original air date" = (SELECT "original air date" FROM table_203_306 WHERE "title" = '"antarctica"')
SELECT "title" FROM "table_203_306" WHERE "original air date" = (SELECT "original air date" FROM "table_203_306" WHERE "title" = '"antarctica"') AND "title" <> '"antarctica"'