Site 1:
http://electronics.howstuffworks.com/question167.htm
Search tool: I used google to do this search because it is my most comfortable search engine and I am used to figuring out efficient search terms with this search engine. It took me straight to the perfect site for explaining how the v-chip’s technology worked.
Search term: “how the v-chip works”
Credibility:
-This site was founded by North Carolina State University Professor Marshall Brain in 1998 and is owned by Discovery Communications.
-the site is funded by advertisments and the owner company
-There is no date saying how recent the information is.
-This site is perfect for the question I was trying to answer. I do however have to look to another site for the details of who rates the TV shows, and the social context of the Vchip.
Useful Information:
In 1996, congress passed a bill that required all television shows to be categorized by ratings that have criteria determining the age appropriate group for the show. The V-chip is a chip that allows every television set to be able to detect the rating of television shows, and according to the settings that the owner of the television programs, it blocks shows corresponding to the blocked ratings. In short, it helps parents block television shows that may have material that they do not want their children to see.
All shows have a code embedded in it that indicated what its rating is. The V-chip reads this signal and sees if the rating is allowed on that television set. The way the signal is embedded has to do with the line 21 data area. “All sorts of things go inside this data area -- such as closed captioning information and the time of day -- as well as ratings information. The V-chip simply decodes the line 21 data, compares it with the parent's allowed rating and then either blocks the signal or lets it through.”
The ratings that the FCC has settled on look like this:
TV-Y - All children can watch; zero violence or sexual content
TV-Y7 - For children 7 and over
TV-G - For general audiences; no sex, violence or inappropriate language
TV-PG - Parental guidance suggested
TV-14 - Suitable only for people over 14; some sex or violence
TV-MA - Suitable only for mature audiences; may contain graphic violence or sexual situations
Site 2:
http://www.fcc.gov/cgb/consumerfacts/vchip.html
This website is run by the FCC, which is a beuracracy of the US government, so credibility is assured.
Search term: “who assigns TV content ratings”
Search tool: google.com. I tried a bunch of different ones and only Google turned out a useful result.
Missing info: social context and how the technology actually works
Useful Information:
“In 1996 Congress asked the television industry to establish a voluntary rating system for TV programs. In response, the National Association of Broadcasters, the National Cable Television Association, and the Motion Picture Association of America created the rating system known as “TV Parental Guidelines. The TV Parental Guidelines Monitoring Board reviews the ratings guidelines and their application to television programming. The Monitoring Board has a Chairman and six members each from the broadcast television industry, the cable industry, and the program production community. The Chairman of the FCC also selects five non-industry members from public interest groups, for a total of 24 members.” (http://www.fcc.gov/cgb/consumerfacts/vchip.html )