Samsung LT27A750ND-ZA - Manual (Page 117)

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English
N
To block certain content, you select a lock, and press ENTER E (That
is, you “click it”.). For example, click the 18 ans+ lock and you block all
TV programs rated 18 ans+ . 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 8 ans+ category, then
13
ans+ , 16 ans+ and 18 ans+ will automatically be blocked also.
N To unblock a category, click the lock.
Downloadable U.S. Rating : Parental restriction information you can use while
watching DTV channels.