SELECT MIN("date") FROM table_204_196 WHERE "outcome" = 'winner'
in what year did roche win his first doubles title ?
CREATE TABLE table_204_196 (
    id number,
    "outcome" text,
    "no." number,
    "date" number,
    "championship" text,
    "surface" text,
    "partner" text,
    "opponents in the final" text,
    "score in the final" text
)