Did clearing the database and then importing the existing recordings solve the problem with the channel logos, or are there still some older recordings that are missing their channel logos?The exercise revealed only 5 recording on 3 channels whose names had changed, so there is evidently some other mechanism than simple text matching at work in mapping the channel logos.
In the UK, I use the EPG that is broadcast with the DVB-T/T2 datastream, and that does not provide series or episode numbers that are usable by TV Server (but see below).The "SERIESNUM" and "EPISODE*" tags are always empty in my XML fields, even for the recordings that MP has filed away as series episodes.
The criterion that TV Server uses to decide whether a recording is a "series" or a single programme is the type of schedule that you create. If you create a repeating schedule of any type (e.g. "every time on this channel", or "weekly on this day of the week", or ...), TV Server regards those programmes as being a series, and so uses the series recording path to store them. It is common to call this capability of TV Server series recording, but that is not the correct term. It is actually repeated recording.
In the UK, the DVB-T/T2 EPG actually has true series and episode ids that can be used to record a genuine series. My Humax DVR can do this, but unfortunately TV Server cannot . Occasionally the BBC will schedule a series on a particular theme that consists of programmes from different makers. These programmes have differing titles, and so cannot be recorded by TV Server as a series (because TV Server simply looks for repeated occurrences of the selected title). But true series and episode ids allow these disparate programmes to be recorded as a series. Maybe someday it will be implemented in TV Server.
When you first install MP, the default for pre-padding is zero minutes, so there is some logic in the default time offset for thumbnails also being zero. But when you change the pre-padding value, the time offset for thumbnails does not change correspondingly (the two settings are not linked in TV Server).It makes little sense that the default "Time Offset" for extracting recording thumbs is zero when the default "Start recording" time is 7 minutes before the scheduled program starts.
In the UK, I use a pre-padding of one minute, post-padding of five minutes, and a thumbnail time-offset of five minutes. (Obviously the optimal values will depend on the practices of the broadcasters in your part of the world. )
-- from CyberSimian in the UK