Possible to draw in the VBI with an Amiga?

[freqmax]

Purpose?

[freqmax]

DVB killed it

Anyway consider that a teletext line is 360 bits per video line. And that a PAL video line takes 51,95 µs. You must get very near the bitrate of 6,9375 Mbit/s in order to get the receiver PLL to sync to your bitstream.

You might try with 640 pixel wide in black and white. But I dault it will work.

[freqmax]

You could put together a 360-bit shiftregister that is clocked to 6,9375 MHz. That you switch into and out of the videosignal upon horizontal sync pulse at the VBI lines.