The only way to get custom numbering in emby right now, as far as I know, will be to use ServerWMC and do your custom numbering in WMC. Also, any disabled channels in WMC will not be transferred to emby so you should end up with a clean guide based on WMC settings. I'm not sure how you got a situation of seeing both your custom numbering and the Spectrum numbering in the guide. Do you have each tuner in emby twice (once for ServerWMC and once for the network tuners) and Schedules Direct setup as a provider?
Now that I'm working on XMLTV for EPG123, I've noticed emby still has some gaps in their XMLTV support. I would consider them minor, but it will bring it to the same level as the other providers ... support Video attributes (HD, 16:9) and Audio attributes (DD, DD+, stereo, ...). There is also a gap in XMLTV itself in that you can't indicate LIVE events. With ServerWMC, you get the HD and Live indicators in the guide.
For simplicity, I will continue this discussion over in TheGreenButton but if something comes up in Emby, I'll post a link to the discussion in TheGreenButton.
Edited by Sammy, 02 March 2018 - 11:29 AM.