What's the difference between PG and SPG?

Bibliografiska uppgifter
I publikationen:	Philippine Star (Feb. 16, 2012), C-1
Huvudupphovsman:	Lo, Ricardo F.
Materialtyp:	Artikel
Språk:	engelska
Publicerad:	2012
Ämnen:	Philippines. Movies and Television Review and Classification Board Television programs > Philippines > Rating