Metadata common to any content type. An identifier for a title. The ID must be unique amongst all content for each partner. IMDB "tt id" External identifier The Unique ID of the content for which the start and (optional) end dates are to be applied A required value, select a valid MPAA rating or "Unrated" for "uncut" or "uncensored" versions of a previously rated title or "NR" for "No Rating" \ "Not Rated" if the title has never been given an MPAA rating. If the title was given a TV Parental Guidelines rating, that rating may be used A required value, select a valid TV Parental Guidelines rating or "NR" for "No Rating" \ "Not Rated" if the title has never been rated Represents a reasonably current date and time from 01-January-2000 through to 31-December-2050 inclusive.