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)

which is the only year to feature a university level 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