CREATE TABLE table_18921 ("Year ( s ) " FLOAT, "Grand Final Television Commentator" CLOB, "Grand Final Dual Television Commentator" CLOB, "Spokesperson" CLOB, "Semi Final Television Commentator" CLOB, "Semi Final Dual Television Commentator" CLOB)

How many grand final dual television commentators were there in 1961?
SELECT COUNT("Grand Final Dual Television Commentator") FROM table_18921 WHERE "Year(s)" = '1961'
SELECT COUNT("Grand Final Dual Television Commentator") FROM "table_18921" WHERE "Year(s)" = '1961'