I am not sure how Plex decides if the recording is TV show or Movies, but I guess it gets the information from EPG and based on that it allows you to pick the library of the particular type.
Due to the decision not to offer the Czech EPG anymore I have been forced to make a script which is downloading the EPG from my DVBS2 receiver and convert it in XMLTV format. Maybe it’s the poor EPG data from our TV provider, which makes Plex to not allow me to pick a TV show library while adding a recording.
I guess adding an radio button to be able to choose/override what type of recording we are adding could solve it.
I hope another option would then also allow me to configure how many episodes to record.
Thanks
LH