Some screencaps between the 2004 DVDs and the Blu-Rays:
http://www.horrordvds.com/vb3forum/showthread.php?threadid=41225&page=13
I must say (though you'll disagree with me) changes aside, the Blu-Ray captures look remarkable! You can a bit more detail and grain. Say what you will about the transfers, but I think they're the best in DVD/Blu-Ray restoration.