What high definition television options are available for Italia 1?
CREATE TABLE "national_terrestrial_and_sky_tg24" (
  "n" real,
  "television_service" text,
  "country" text,
  "language" text,
  "content" text,
  "dar" text,
  "hdtv" text,
  "package_option" text
);
SELECT "hdtv" FROM "national_terrestrial_and_sky_tg24" WHERE "television_service"='Italia 1';