Playoffs of league champs, and a Record of 77-63 is in what league?
CREATE TABLE "western_league" (
  "year" real,
  "league" text,
  "class" text,
  "record" text,
  "finish" text,
  "manager" text,
  "playoffs" text
);
SELECT "league" FROM "western_league" WHERE "playoffs"='league champs' AND "record"='77-63';