I'm not sure if they have showed the preview to the last show on TV yet, but in this preview clip at the end the man's VO say's it's the SERIES finale.click in your zip code, than make sure you put in the date as 5/24 and the time the show comes on. and watch the preview.
http://www.meevee.com/myhome.aspx
I think we all knew it was over, but this clip "confirms" it.
Thank God it's gone forever!