little or no sexual dialogue or situations. TV-PG – Parental guidance is recommended; these programs may be unsuitable for younger children. TV-14 – This program contains some material that many parents would find unsuitable for children under 14 years of age. TV-MA – This program is intended to be viewed by adults and therefore may be unsuitable for children under 17.Some thematic elements, according to the FCC, "may call for parental guidance and/or the program may contain one or more of the following" sub-ratings, designated with an alphabetic letter: D – Suggestive dialogue (rarely used with TV-MA-rated programs) L – Coarse language S – Sexual content V – Violence FV – Fantasy violence (exclusive to TV-Y7-rated programs) Up to four content descriptors can be applied along with an applied rating, depending on the kind of suggestive content featured in a program (with the exception of the "FV" sub-rating, due to its sole applicable use for children's programs). As the rating increases pertaining to the age, the content matters generally get more intensive. The 'suggestive dialogue' descriptor is used for TV-PG and TV-14 rated programs only, although certain networks may choose to rate their TV-MA programs with the descriptor, while the DLSV sub-ratings are only used with the TV-PG and TV-14 ratings. An additional content descriptor, "E/I", is applied to select TV-Y, TV-Y7, and TV-G programs that are designed to meet the educational and informative needs of children aged 16 and under. A minimum of three hours of E/I-compliant programming must be broadcast per week by each television network; E/I programming must air between 6:00 a.m. and 10:00 p.m. to count toward this minimum. Content advisory ratings (premium cable and pay-per-view) The American pay television industry uses a separate, unrelated content advisory system—used in conjunction with the TV Parental Guidelines and the Motion Picture Association rating system—that first went into effect on March 1, 1994, on participating cable-originated premium channels and pay-per-view services (led by the system's charter services, HBO, Cinemax, Showtime and The Movie Channel). Inspired by similar content guidelines that had already been included in the services’ monthly program guides, the voluntary-participation system provides guidance to pay-cable subscribers on the suitability of a program for certain audiences based on its content. Thematic material is rated based on a ten-code system, designated with a two- or three-letter abbreviation and corresponding descriptor: AC – Adult Content AL – Adult Language GL