What was the original U.S. air date of the episode directed by Julian Petrillo?
CREATE TABLE "table1_25246990_5" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "u_s_viewers_millions" text,
  "original_u_s_air_date" text,
  "prod_code" real
);
SELECT "original_u_s_air_date" FROM "table1_25246990_5" WHERE "directed_by"='Julian Petrillo';