What was the first numbered episode in the series titled "the wind beneath our wings"?
CREATE TABLE "table1_26866299_1" (
  "series_num" real,
  "episode_num" real,
  "title" text,
  "director" text,
  "writer" text,
  "original_airdate" text
);
SELECT MIN("series_num") FROM "table1_26866299_1" WHERE "title"='\"The Wind Beneath Our Wings\"';