Which HAAT has a Channels TV / RF of 31 (psip) 44 (uhf)
CREATE TABLE "stations" (
  "station" text,
  "city_of_license" text,
  "channels_tv_rf" text,
  "first_air_date" text,
  "haat" text,
  "facility_id" real,
  "public_license_information" text
);
SELECT "haat" FROM "stations" WHERE "channels_tv_rf"='31 (psip) 44 (uhf)';