I want to know the answer to the following question:
In what year did the Motion Picture Association of America introduce its rating system?
All the background I'm provided with is that "– sometimes featuring nudity, sexual content, violence and/or strong profanity; the network also features rating bumpers prior to the start of a program (most programs on TCM, especially films, are rated for content using the TV Parental Guidelines, in lieu of the MPAA's rating system).". Is that enough to answer the question?
Answer: no