Instruct: Classify Amazon reviews into positive or negative sentiment
Query: RIDICULOUS SPOILERS IN THE PREVIEWS

As other commenters have noted, the previews, which are annoyingly on every single disc, and which cannot be skipped, show the last 5 seconds of the season and reveal a major spoiler. When I saw it, I was in serious disbelief that they would show a huge spoiler for Dexter anywhere, let alone on the Dexter DVD itself. I am extremely annoyed by this, to say the least. Thanks for ruining the show for me.