How many original air dates are there for the episode titled "Everyone can't be George Washington"?
CREATE TABLE "table1_2342078_5" (
  "episode_num" real,
  "season_num" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_airdate" text,
  "production_code_num" real
);
SELECT COUNT("original_airdate") FROM "table1_2342078_5" WHERE "title"='\"Everyone Can''t Be George Washington\"';