Name the Years which have Transmission of digital satellite, an On demand of no, and a Free or pay of free + ppv?
CREATE TABLE "current_providers" (
  "provider" text,
  "years" text,
  "free_or_pay" text,
  "transmission" text,
  "on_demand" text
);
SELECT "years" FROM "current_providers" WHERE "transmission"='digital satellite' AND "on_demand"='no' AND "free_or_pay"='free + ppv';