What is Teleplay, when Season is greater than 1.1, and when First Broadcast is "February 20, 1981"?
CREATE TABLE "episodes" (
  "title" text,
  "season" real,
  "director" text,
  "teleplay" text,
  "first_broadcast" text
);
SELECT "teleplay" FROM "episodes" WHERE "season">1.1 AND "first_broadcast"='february 20, 1981';