For your information,MythTV is running like a charm for me.I cant understand how the dev´s not use it.I run 2x Nexus S DVB-S Cards and installed 3x IPTV Freebox Virtual Cards with a m3u file linked to the Channels of my provider,HD channels over IPTV. I check the Mythtv Plugin to not beeing Auto Configurated by LinuxMCE on the Web admin page. Then i run mythsetup on my core and install all Cards and do a channel search. After that you can add MD to your Core and boot them up.The first time you start mythsetup on a MD it will ask you for Language Settings and the Database and Password settings,here you need to fill in the same information like on your Core found on Gerneral Settings in Setup.In my case Coreip 192.168.80.1(better change this in Core also, not use dcerouter/localhost)and the password provided.Then mythsetup on MD will connect to the Master Backend and save the settings.If you dont want to add extra Cards on the MD leave the setup and your done. All Cards are shared,all Records are shared all in sync.Works like a charm.I can connect from Windows PC with Mythtv player,i can connect from Kodi useing MythFronted Plugin,running Kodi on windows and on android(Amazon Fire TV Stick),i can connect from Android Phone useing MythFrontendBeta and watch all recordings away from home too.I see all recodings shared from myth upnp,and watch recodings over html from browser also works,with a small delay of the file beeing transcoded.I have up running 3x MD´s.I see all my Harddrives in MythTv Status Page and all the record folder links are correct.
Please never let MythTV die in LinuxMCE,its the most used thing in my Setup.
Howie