Here are some captures from the 1080i HDTV version (compared to the 1999 DVD). I think #3 best shows off the extra detail of the HDTV. Note that the colours are exactly the same (unlike the blu-ray):
http://screenshotcomparison.com/comparison/10757/
I chose the frames to match this comparison:
http://www.theraffon.net/~spookcentral/gb1_homevid_compare.htm