I did look at zap2it.com/Gracenote (thank you for pointing me to that resource) but somehow I missed that they misnumber all the episodes following the S04E19 2-part episode. Now I feel bad that I wrongly claimed Channels DVR has a bug in the local content import!
I checked some other Frasier 2-part episodes on Gracenote, and in all cases they incorrectly number the following episodes in that season.
I also checked 2-part episodes on Gracenote for some other shows (Seinfeld, Wings, WKRP) and fortunately for all those shows Gracenote does not mess up the numbering following a 2-part episode. So it appears to be an isolated issue with specific shows.
Thanks for explaining (again) what’s going on. I’m not clear on how to fix the match at the episode level by doing a search, but I see I can manually edit the episode name/description by clicking on Options > Edit Metadata for that episode. In any case its probably not worth the effort.
I assume I have to live with this issue and there’s nothing we can do except hope that Channels DVR switches to a better database.