There is no TBS 8191 card.Do you mean TBS 6981???
Check list here
EBS supports this DVB-Cards:
Montage TS2020/DS3000:
DW2004D PCI
DW2104D USB2.0
DW2006 PCI-E
STB6100/STV0903BA:
TBS QBox S2 CI (5980)
STV0903BA, STV0900AA:
Omicom S2
TT S2-1600
Prof 7301/7500/8000 (Driver 7500 Fix) – Update!
TBS 6925 V1&2 ( Recommended)
STB6000/STV0288:
TBS 8910
Prof 6200
TeVii S420
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