Samsung "gen-5" vs "gen-6"?
 

The Samsung HLR5067W (50" 720 DLP) has "gen-5" "Display Device":
http://www.samsung.com/Products/TV/D...Specifications


while the HLR5078W (50" 1080 DLP) has a "gen-6":
http://www.samsung.com/Products/TV/D...Specifications

Does anyone know what the difference is? Is it just the 1080 vs 720
lines? Or is the gen-6 better than the gen-5 in some other way?

Thanks,
Bob