Which episodes originally aired on April 19, 2010?
CREATE TABLE "new_zealand_tv2" (
  "episode_number" real,
  "title" text,
  "original_airing" text,
  "timeslot" text,
  "viewers" real,
  "top_50_ranking" real,
  "scripted_show_ranking" real
);
SELECT "title" FROM "new_zealand_tv2" WHERE "original_airing"='April 19, 2010';