ANSI/CTA-608-E S-2019

ANSI/CTA-608-E S-2019

Line 21 Data Services (ANSI/CTA-608-E S-2019)

Technical standard and guide for using or providing closed captioning services or other data services embedded in line 21 of the vertical blanking interval of the NTSC video signal.

Stabilized: December 2019

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