CREATE TABLE table_204_179 (id DECIMAL, "season" DECIMAL, "division" DECIMAL, "tms." DECIMAL, "pos." DECIMAL, "fa cup" TEXT, "afc cl" DECIMAL)

which year was the most pos .
SELECT "season" FROM table_204_179 WHERE "pos." = (SELECT MAX("pos.") FROM table_204_179)
SELECT "season" FROM "table_204_179" WHERE "pos." = (SELECT MAX("pos.") FROM "table_204_179")