Oh even though it's only nominally a superhero show. Gotham is great. In fact I like it best because it's not about Batman. I like batman, but the idea of a cop show set in his world is quite different and the characters and actors in the show are great.
It's a little heavy handed from time to time with the 'You get who this is right??' but the 2nd season seems to have done away with that a great deal.
Plus the Penguin is just amazing. Best version of him in any show/movie I've seen.