First of all, yes, if you're a linguistic traditionalist then the show should really be called The Rev., not Rev.
Second of all, it's disappointing that by the second episode, the British scripted series is relying heavily on the old binary of a small, old-fashioned, declining, liberal congregation vs. a large, hip, casual, thriving, conservative one. (The latter's hip-hop music leader goes by the name Ikon! Cute, but haven't the showrunners heard of Peter Rollins?)
Okay, now I can say it: Rev.'s on Hulu! You should watch it!