In its first few episodes, Netflix’s A Different World does not quite live up to its title. Sure, the Hillman College we first encountered in the 1980s looks different now, full of modern young people with their modern concerns and their modern fashions and their modern music (beginning with an updated opening theme by Brandy). But with so many familiar faces from the earlier A Different World onscreen, rehashing so much of their familiar dynamics, the new spinoff-sequel-reboot thing might appear upon first impression like more of the same. A Different World The Bottom Line Fun, thoughtful and a bit messy — just like college should be….