Comedian Kitty Flanagan plays an emotionally tone deaf suburban solicitor amidst a chaotic husband-wife legal practice in “Fisk,” a slyly funny six-part series that is so Melbourne-soaked, both in its tram-in-the-streets atmospherics and in its droll humor, that I can really only recommend it to Australians. That said, apart from one flat episode, the series glitters with chuckle-inducing repartee and a gentleness that is rarely seen these days. The supporting actors playing the shonky firm’s outlandish personnel are brilliant: Ray Sheargold, Julia Zemiro, and especially Aaron Chen as “the Webmaster.” The final episode is guffaw after guffaw. Fisk is understated, subtle pleasure.