Name the episode number for tasers and mind erasers
CREATE TABLE "united_kingdom" (
  "episode_number_production_number" text,
  "title" text,
  "original_airdate" text,
  "time_of_airing" text,
  "total_viewers_on_hallmark" real,
  "total_viewers_on_hallmark_1" real,
  "total_viewers" real,
  "rank_on_channel" text
);
SELECT "episode_number_production_number" FROM "united_kingdom" WHERE "title"='Tasers and Mind Erasers';