I remembered this late 80's/early 90's show for its look, high production values, and Ken Wahl's wholly believable turn as Vinne Terranova. After it was recently released (again) on DVD, I picked up Season One from Amazon. It's been very hard to hit 'pause' and come back later! And certainly worth every penny. Wahl is even better than I remembered (I don't think he ever ended up doing anything again after leaving Wiseguy), and the rest of the cast--especially those who were brought on as Wahl's antagonists for the multi-episode story 'arcs' like Ray Starkey and Kevin Spacey--bring their 'A' game (which seems unusual for that era of television.) What struck me in scene after scene is that Wahl not only seems perfectly cast in this role, he has SERIOUS presence and acting chops. His acting, which never seems forced or 'over the top,' seemingly pushes first rate actors like Starkey and Spacey to give it THEIR best . . . there's almost a competitive edge to the extended scenes where Wahl and these guys are truly going for it in an acting sense.
Some of the scriptwriting is a little corny by today's standards, and the plots . . . peculiar (I'm thinking of the Mel Profit arc where Terranova and Profit's right hand man are sent to Tennessee to "straighten out the business"). Jonathan Banks, who plays Terranova's FBI handler, seems overly heated and one dimensional for the most part (a criticism that may have been contemporary as he occasionally breaks character to show some kind of human side). Not a particularly memorable turn.
The other reviews here suggest that things dropped off after Season One, so I probably will skip those . . . but Season One is a serious work of early episodic television.