Trivial Pursuit Rank 30

[PogoKaz]

I think you can go further back in Trivia.  In Word Search, you can only go back 6 months.

Your right Squid, it goes back further - to September 

If it came out in September, I can't remember but was it 1st September the first day of play was or did it allow you say August as well?
The other thing to check is on the calender page at the top you can scroll through the months, but underneath you can scroll through wedges yet to earn.  It's a long shot but maybe there is wedge/bonus wedge missing?