How many episodes were directed by Jeff Melman and 1.21million viewers?
CREATE TABLE "table1_28334498_3" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" real,
  "u_s_viewers_millions" text
);
SELECT MIN("no_in_season") FROM "table1_28334498_3" WHERE "directed_by"='Jeff Melman' AND "u_s_viewers_millions"='1.21';