Samsung UN55ES6580FXZA - Manual (Page 194)

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18+ : Adult programming.
To block certain content, select an
entry field to lock (That is, “click it”.).
For example, click the 18+ lock and you
block all TV programs rated 18+.
The rating categories are also grouped
so that clicking one category blocks
all the categories a parent would block
along with it. For example, if you block
the G category, then PG , 14+ and 18+
will automatically be blocked.