OK - i have revisited the problem with "success" - YiPieee .
Mediaportal detects all subchannels as unscrambled channels and permits conditionalaccess.cs to send out the PMT to the firedtv-box, which is normally done to invite the firedtv-box to descramble the "pmt-linked contents" (and what is not needed, if the tuned channel is an unscrambled channel).
Now, i have commented out line 275 of ConditionalAccess.cs @ TVLibrary:
// if (channel.FreeToAir) return true;//no need to descramble this one...
It is a temp. solution, but works for now.
Mediaportal detects all subchannels as unscrambled channels and permits conditionalaccess.cs to send out the PMT to the firedtv-box, which is normally done to invite the firedtv-box to descramble the "pmt-linked contents" (and what is not needed, if the tuned channel is an unscrambled channel).
Now, i have commented out line 275 of ConditionalAccess.cs @ TVLibrary:
// if (channel.FreeToAir) return true;//no need to descramble this one...
It is a temp. solution, but works for now.