I'm a serial OTPer (as in one for each show, and only one) even though sometimes I really wish I weren't. I find that to begin with, when I'm watching a new TV show, I will watch it for the show. After a while when I've committed to an OTP, I'll start reading/writing fanfic etc and skip all the canon scenes that don't have them in it or I watch those other scenes for plot's sake to get to the OTP scenes. Kind of ruins the whole experience, actually. *am now bitter with this conclusion*