+1
The thing about the Penguin is he wasn't one of Batman's crazy "Arkham' villains. He was eccentric, but not insane.
Some of the TV show's plots were plucked right from the comics - you see, the Penguin wanted to appear as part of Gotham's upper crust, while behind his rouse, he was building a criminal empire. In this sense, the Penguin & Batman had much in common - they both had alter egos that were part of the Gotham elite, but in their true personas one was a criminal & the other was a crime-fighting vigilante. The Penguin, more often than not, failed to maintain his secret identity (usually due to the work of the Batman), yet he'd often try to regain it.
In more recent years, the Penguin has been given a more realistic treatment that plays upon the same themes - he's a wealthy businessman who owns nightclubs, but behind the scenes he's an organized crime boss.
(I have no idea what they're doing with him on "Gotham.")