CREATE TABLE table_79788 ("Call sign" TEXT, "Frequency" TEXT, "City of license" TEXT, "Facility ID" FLOAT, "ERP / Power W" FLOAT, "Height m  (  ft  ) " TEXT, "Class" TEXT, "FCC info" TEXT)

What is the lowest facility ID that's in Beckley?
SELECT MIN("Facility ID") FROM table_79788 WHERE "City of license" = 'beckley'
SELECT MIN("Facility ID") FROM "table_79788" WHERE "City of license" = 'beckley'