The episode with the original airdate December22,1996 has what title? 
CREATE TABLE "table1_26866233_1" (
  "series_num" real,
  "episode_num" real,
  "title" text,
  "director" text,
  "writer" text,
  "original_airdate" text
);
SELECT "title" FROM "table1_26866233_1" WHERE "original_airdate"='December22,1996';