how many callsigns are for the branding telemundo 47
CREATE TABLE "table1_1979203_1" (
  "virtual" text,
  "callsign" text,
  "affiliation" text,
  "branding" text,
  "channel" text,
  "programming" text,
  "owner" text
);
SELECT COUNT("callsign") FROM "table1_1979203_1" WHERE "branding"='Telemundo 47';