user: Question: Name the Years which have Transmission of Digital satellite, an On demand of No, and a Free or pay of Free + PPV?
Columns: ['Provider', 'Years', 'Free or pay', 'Transmission', 'On demand']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['BT TV (formerly BT Vision)', '2006–', 'Pay', 'IPTV and digital terrestrial', 'Yes']
SQL:

assistant: SELECT "Years" FROM "Table" WHERE "Transmission" = 'Digital satellite' AND "On demand" = 'No' AND "Free or pay" = 'Free + PPV';