What was the 18-49 rating share for the episode "pilot"?
CREATE TABLE "table1_22951088_3" (
  "no" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "u_s_viewers_in_millions" text,
  "18_49_rating_share" text
);
SELECT "18_49_rating_share" FROM "table1_22951088_3" WHERE "title"='\"Pilot\"';