Hi!
I see WinDbg shows always TBS6985_64.sys as culprit (if I'm not mistaken).
It should be the driver of TBS6985 DVB-S2 Quad Tuner PCIe Card.
I see in the logs it was updated 31 august 2015 (version 1.0.0.5).
I'd try to roll back to the previous version of it and see what happens (i.e., if the problem disappears).
Anyway, wait for SYSNATIVE STAFF's confirmation, before proceeding!