BadeHotellet aka Seaside Hotel

I've been watching this great tv show for 8 seasons.  I thought it was over but when I went online to the IMDb website, I found this show is currently in its 9th season.  Why doesn't the IMDb on Amazon Prime show the 9th season?  I've also noticed when I open the IMDb app on Prime that there is no search area to find my beloved show.  So how do I find it?  If I do a search on Firestick which includes all Apps installed, it shows Seaside Hotel but it only shows 8 seasons.  I first became aware of this show on PBS.  Yet, PBS too only shows 8 seasons.  How do I watch the 9th season?