CREATE TABLE table_204_12 (id NUMBER, "area served" CLOB, "city of license" CLOB, "vc" NUMBER, "rf" NUMBER, "callsign" CLOB, "network" CLOB, "notes" CLOB)

does cbs serve at least 5 areas ?
SELECT (SELECT COUNT(DISTINCT "area served") FROM table_204_12) >= 5
SELECT (SELECT COUNT(DISTINCT "area served") FROM "table_204_12") >= 5