Game of Thrones season 5, whenever the gap between it and s6 was.
No regrets for not finishing my collection there.
EDIT: I've "bought" some from the library before, specifically when stuff gets dropped off in the night drop that aren't library materials or obvious replacements, since we haven't been able to take or store non-monetary donations for a few years now. We have a holding period in case someone did by mistake, and I picked up a collection of almost all the Daniel Craig as Bond films after said waiting period for a return donation of 10 or so. This process may change now that the Friends of the Library are resuming book sales, if they somehow clear out the storage.
I got a new, Canadian copy of Smash Ultimate from this happening, also. Serendipitous.
[The Artist Formerly Known as Earthshaker.]