CREATE TABLE table_22416 ("Frequency" CLOB, "Call sign" CLOB, "Branding" CLOB, "Format" CLOB, "Owner" CLOB, "Language/Rebroadcast" CLOB)

When vista radio is the owner how many call signs are there?
SELECT COUNT("Call sign") FROM table_22416 WHERE "Owner" = 'Vista Radio'
SELECT COUNT("Call sign") FROM "table_22416" WHERE "Owner" = 'Vista Radio'