It is a if mythv loses track of the tuners.
If I reboot, it works again but only for a while. Sometimes up to a week.
I have studied the backend log and see several groups like this, each time with different Program # numbers :
2016-07-15 16:31:19.709847 N [2413/2655] Expire autoexpire.cpp:264 (CalcParams) - AutoExpire: CalcParams(): Max required Free Space: 1.0 GB w/freq: 15 min
2016-07-15 16:46:19.712084 N [2413/2655] Expire autoexpire.cpp:264 (CalcParams) - AutoExpire: CalcParams(): Max required Free Space: 1.0 GB w/freq: 15 min
2016-07-15 16:52:54.516524 E [2413/30703] DVBRead recorders/dtvsignalmonitor.cpp:322 (HandlePAT) - DTVSigMon[7](/dev/dvb/adapter1/frontend0): Program #25664 not found in PAT!
Is this significant?
This only began to occur when I 'upgraded;' from Mageia 4 to 5.