[mythtv-users] Backend Startup

[John]

I am experiencing flaky tuner startup at power on - reliable after restart.

I notice that my two dual tuners USB & PCI are loading firmware after 
the backend starts. I tried putting a delay in mythbackend.service but 
this does not work. The tuners only start loading firmware after sytemd 
declares Startup finished.

11:16:13 tv systemd[1]: Started MythTV Backend.
Nov 28 11:16:13 tv systemd[1]: Startup finished in 6.524s (firmware) + 
4.968s (loader) + 1.556s (kernel) + 37.074s (userspace) = 50.123s.
Nov 28 11:16:14 tv kernel: [   39.174505] m88ds3103 1-0069: downloading 
firmware from file 'dvb-demod-m88rs6000.fw'
Nov 28 11:16:17 tv kernel: [   42.065433] m88ds3103 1-0069: firmware 
version: 4.1
Nov 28 11:16:19 tv kernel: [   44.132909] m88ds3103 2-0069: downloading 
firmware from file 'dvb-demod-m88rs6000.fw'
Nov 28 11:16:22 tv kernel: [   47.018474] m88ds3103 2-0069: firmware 
version: 4.1
Nov 28 11:16:23 tv kernel: [   48.906105] si2168 8-0064: downloading 
firmware from file 'dvb-demod-si2168-b40-01.fw'
Nov 28 11:16:24 tv kernel: [   49.113970] si2168 8-0064: firmware 
version: B 4.0.11
Nov 28 11:16:24 tv kernel: [   49.166094] si2157 11-0060: firmware 
version: 3.0.5
Nov 28 11:16:25 tv kernel: [   50.192247] si2168 10-0067: downloading 
firmware from file 'dvb-demod-si2168-b40-01.fw'
Nov 28 11:16:25 tv kernel: [   50.393052] si2168 10-0067: firmware 
version: B 4.0.11
Nov 28 11:16:25 tv kernel: [   50.445052] si2157 12-0063: firmware 
version: 3.0.5

How do I start the backend without systemd so that I can delay it until 
the tuners are fully initialised?