/usr/share/dvb/dvb-s/SBS6-74w is in dtv-scan-tables 0+git20140107.1850cf8-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# SBS 6 @ 74W # freq pol sr fec S 11744000 H 06616000 AUTO