What station on the network is tv3?
CREATE TABLE "table1_160728_4" (
  "channel" real,
  "band" text,
  "video_frequency" text,
  "audio_frequency" text,
  "station" text,
  "network" text,
  "transmission" text,
  "format" text,
  "status" text
);
SELECT "network" FROM "table1_160728_4" WHERE "station"='TV3';