CREATE TABLE table_203_185 (id DECIMAL, "season" TEXT, "a\ technical" TEXT, "b\ scientific" TEXT, "c\ fine arts" TEXT, "d\ improvisational" TEXT, "e\ structural" TEXT, "rising stars!\\u00ae" TEXT, "po\ projectoutreach\\u00ae" TEXT, "university level" TEXT)

what is the only year to feature a university level team challenge ?
SELECT "season" FROM table_203_185 WHERE NOT "university level" IS NULL
SELECT "season" FROM "table_203_185" WHERE NOT "university level" IS NULL