How many seasons have the production code 7.01 for an episode? 
CREATE TABLE "table1_2226817_8" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" text
);
SELECT MAX("no_in_season") FROM "table1_2226817_8" WHERE "production_code"='7.01';