FYI, MTV has spun off a weekly reality show based on Catfish. I'm not 100% sure, but I think it may be their highest rated show currently airing. It is now about midway into a second season.
I like Catfish. There are lots of sketchy/unrealistic things about it, but I think it's fantastic that they've finally made a show covering something that's been happening since the dawn of the internet. Also Nev and Max are massively charismatic and likeable.