The Line parameter sets the VANC line on which caption data will be
inserted into the HD video signal.
Valid VANC insertion lines for the most common HD video formats. Many caption encoders insert closed captions on line 9 by default.
*In interlaced formats, caption data will only be inserted once per frame, in the first field.
| Format | Frame Rate | VANC Insertion Lines* *VANC line 9 is default. |
| 24Psf | 23.976 | 1-20, 1124, 1125 |
| 720p V720p x H1280 | 59.94 fps | 1-25, 746-750 |
| 1080i V1080i x H1920 | 29.97 (59.94 fields/s) | 1-20, 561, 562, |
| 1080p V1080p x H1920 | 59.97* fps (or is it 60 fps? Confirm) | 1-41, 1122–1125 |
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