What's the difference between PG and SPG?

What's the difference between PG and SPG?

Detaylı Bibliyografya
Yayımlandı:Philippine Star (16 Feb. 2012), C-1
Yazar: Lo, Ricardo F.
Materyal Türü: Makale
Dil:English
Baskı/Yayın Bilgisi: 2012
Konular:
Philippines. Movies and Television Review and Classification Board
Television programs > Philippines > Rating