CREATE TABLE table_203_631 (id NUMBER, "year" NUMBER, "name of show" CLOB, "episodes" CLOB, "other guests" CLOB, "winner ( s ) " CLOB)

what year was the only year were a tie occurred ?
SELECT "year" FROM table_203_631 WHERE "winner(s)" = 'tie'
SELECT "year" FROM "table_203_631" WHERE "winner(s)" = 'tie'