What city of license/market has the channel of 41?
CREATE TABLE "television_stations" (
  "city_of_license_market" text,
  "station" text,
  "channel_tv_rf" text,
  "owned_since" real,
  "affiliation" text
);
SELECT "city_of_license_market" FROM "television_stations" WHERE "channel_tv_rf"='41';