When a Series Link recording is scheduled from an EPG entry, the title of that episode is included in the parameters to be checked against events along with the series CRID and channel. This causes a problem if episodes of the series have different titles. For example this current series on UK Freeview:
A series link based on one episode will not record the other episodes because their titles are different.
It is possible to manually work around the problem by changing the title in the series link (in this case to "Dangerous Earth"), but it would be preferable for the matching algorithm to ignore the event title if a valid series CRID is present.