Content
Besides digital audio and digital video transmission, DVB also defines data connections (DVB-DATA - EN 301 192) with return channels (DVB-RC) for several media (DECT, GSM, PSTN/ISDN, satellite etc.) and protocols (DVB-IPTV: Internet Protocol; DVB-NPI: network protocol independent).
Older technologies such as teletext (DVB-TXT) and vertical blanking interval data (DVB-VBI) are also supported by the standards to ease conversion. However, for many applications more advanced alternatives like DVB-SUB for subtitling are available.
Read more about this topic: Digital Video Broadcasting
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“I am content to live it all again,
And yet again, if it be life to pitch
Into the frog-spawn of a blind man’s ditch.”
—William Butler Yeats (1865–1939)
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—Horace Walpole (1717–1797)