Magisterian Radio and Television Executive Council

The Magisterian Television Guidelines or MTG is a rating goverment agency that was established in January 27, 1934, All the ratings back in 1934 was just texts. Every network in Magisteria have their own version of the ratings.

General Patronage
Suitable for all ages. Material for television, which in the judgment of the Board does not contain anything unsuitable for children.

Parental Guidance / Patnubay at Gabay
Parental guidance suggested. Material for television, which, in the judgment of the Board, may contain some adult material that may be permissible for children to watch but only under the guidance and supervision of a parent or adult.

Strong Parental Guidance / Striktong Patnubay at Gabay
Stronger and more vigilant parental guidance is suggested. Programs classified as “SPG” may contain more serious topics and themes, which may not be advisable for children to watch except under the very vigilant guidance and presence of a parent or an adult. It is the only rating of the system that has descriptors and that are the "TLVSHD" or Themes, Language, Violence, Sex, Horror and Drugs.

Trivia

 * Wowowillie was rated PG from 2007 until November 2, 2009, it was rated SPG-LS
 * Magisteria is the only country that aired the lost episode of Spongebob Squarepants, Red Mist, it was rated SPG-TVH