TV Parental Guidelines
http://www.fcc.gov/vchip/#guidelines
http://www.mpaa.org/tv/index.htm

TV PARENTAL GUIDELINES:
The following categories apply to programs designed solely for children: The following categories apply to programs designed solely for children:

1. TV-Y All Children
   This program is designed to be appropriate for all children. Whether animated or live-action, the themes and elements in this program are specifically designed for a very young audience, including children from ages 2-6. This program is not expected to frighten younger children.
2. TV-Y7 Directed to Older Children
   This program is designed for children age 7 and above. It may be more appropriate for children who have acquired the developmental skills needed to distinguish between make-believe and reality. Themes and elements in this program may include mild fantasy violence or comedic violence, or may frighten children under the age of 7. Therefore, parents may wish to consider the suitability of this program for their very young children. Note: For those programs where fantasy violence may be more intense or more combative than other programs in this category, such programs will be designated TV-Y7-FV.
   

The following categories apply to programs designed for the entire audience:

1. TV-G General Audience
   Most parents would find this program suitable for all ages. Although this rating does not signify a program designed specifically for children, most parents may let younger children watch this program unattended. It contains little or no violence, no strong language and little or no sexual dialogue or situations.
2. TV-PG Parental Guidance Suggested
   This program contains material that parents may find unsuitable for younger children. Many parents may want to watch it with their younger children. The theme itself may call for parental guidance and/or the program contains one or more of the following:
   (V) moderate violence
   (S) some sexual situations
   (L) infrequent coarse language
   (D) suggestive dialogue
3. TV-14 Parents Strongly Cautioned
   This program contains some material that many parents would find unsuitable for children under 14 years of age. Parents are strongly urged to exercise greater care in monitoring this program and are cautioned against letting children under the age of 14 watch unattended. This program contains one or more of the following:
   (V) intense violence
   (S) intense sexual situations
   (L) strong coarse language
   (D) intensely suggestive dialogue
4. TV-MA Mature Audience Only
   This program is specifically designed to be viewed by adults and therefore may be unsuitable for children under 17. This program contains one or more of the following:
   (V) graphic violence
   (S) explicit sexual activity
   (L) crude, indecent language

MPAA MOVIE RATINGS:

1. G
   Intended for general audiences. All ages are admitted.
2. PG
   Parental guidance is suggested. Some material may not be suitable for children.
3. PG-13
   Parents strongly cautioned. Some materials may be inappropriate for children under 13.
4. R
   Restricted. Under 17 requires accompanying parent or adult guardian.
5. 5. NC-17
   No one 17 and under admitted.