Series Link Defect

Black Hole

May contain traces of nut
I don't recall this has been mentioned before:

I set a series link recording for Autumnwatch, and it offered Autumnwatch Unsprung as well, which I wanted. So I accepted the offer... but it wasn't series linked! I had to unset the recording and re-do it as series link.
Recommendations are always for just one-off events. Not really Humax's fault, the single event CRID is all that's in the EPG stream and there's probably a standard that says how they should use the information...