This is one of top 5 series of all time, rewatched it on Blu-ray a couple years ago, there's nothing in it to 'age', except for cellphones maybe, which don't play a major role, and people actually use them - oh the horror - to make phone calls!
It's also the most realistic cop show there is, unlike those "911" kinds, where policemen are portrayed living in $5 million villas and being taken care of in Cedars Sinai type $10,000 a night private hospital rooms they'd never ever be able to afford, etc.
This is just a reissue, right, no new extras or anything?