Nothing ever goes away again. It's pretty remarkable how conversant with - and fond of - trivial 80s crap people are today. TV particularly. Frasier has aged remarkably well in most respects. Frankly, the problem it does have is one shared by many older comedies and that really stands out now, which is the number of "gay" jokes. Speaking of which, Will & Grace plays like minstrelsy now. It's amazing that its revival has happened and has been accepted so enthusiastically.