What eagle riders where ova (harmony gold dub) is lord zortek?
CREATE TABLE "table1_17480471_3" (
  "gatchaman" text,
  "battle_of_the_planets" text,
  "g_force" text,
  "eagle_riders" text,
  "ova_harmony_gold_dub" text
);
SELECT "eagle_riders" FROM "table1_17480471_3" WHERE "ova_harmony_gold_dub"='Lord Zortek';