AOC ENVISION L27W461 Mode D'emploi page 19

6. Digital Close Caption: Provide numerous options for setting the close caption
style. In the sub-menu,【Style】item can be set as Automatic or Custom mode.
If Custom mode is selected, user can modify the detail styles described below.
The setting result will be shown immediately on the bottom side of the sub-menu
OSD. Note: This feature is only available in Digital TV (ATSC) mode.
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