Am now watching series 2 of NYPD Blue and there's another cameo by an ex Hill Street Blues star, this time Frank's missus, Fay. David Caruso who played the leader of the Shamrocks gang, Dennis Franz who played detective Buntz, Charles Haid who played Renko and, best of all, the black guy that used to get arrested every five minutes for flashing lololol...and he did exactly the same thing in NYPD Blue - takes off his flasher's mac and shouts, "I'm butt naked!!!" Lololol
Going to be interesting to see how many others appear, although the possibilities are somewhat limited by some of the Hill Street Blues cast dying before 93.
It's a great series anyway, don't know how I missed it years ago considering that it was created in part by Steve Bocho who also created Hill Street Blues and L.A. Law. I've downloaded the first series of the latter too.
Edit: Bloody hell, a schizophrenic on there has a pair of in-ear Sony headphones. I'd kill to get hold of a pair of those from the early 90s. They used to unclip so that you could resolder them when the connection started to go. Later on they glued them together to stop you from fixing them. Had a pair that got nicked with a Sony Walkman that I had. Wasn't a happy bunny, best headphones I've ever had