Sony FD TRINITRON WEGA KV-21FS120 Operating Instructions Manual page 34

Using the Custom Menu
Before setting Custom ratings, see pages 24-25, "Overview of the Ratings," for a description of
the available rating systems.
Follow the instructions on the screen to make your custom settings. Select the country desired
for your TV's rating limit. See page 27 for U.S. models and page 29 for Canadian models for
more information.
✍
Once you have blocked a rating or content, all higher ratings or content will be automatically blocked.
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