what about cables and antennas..

Teletext Decoding in FAB Network Controller

FAB Network Controller supports the following teletext decoding sources:

• Hauppauge cards for analogue antenna and CVBS input
• Hauppauge cards for DVB-T, DVB-C and DVB-S/S2
• FAB FT-HT 1x cards for teletext decoding from SD/HD-SDI
• Linux based set top boxes
• Teletext in TS/IP Streams

https://www.fab-online.com/kb/sup/fabnc/ttxdecoder.html