Yup, and it sucks and I would personally not be part of that kind of circle. Ofcourse in a work environment this is hard to avoid. That's why "Culture fit" is stressed so much in recruiting.
This is unrelated, but I don't really get why one would want to watch TV with colleagues. It's not like you're productive when doing it. The requirement for the infamous "culture fit" is lower if you don't require that all coworkers are 100% socially compatible with each other. Then again, I'm from Europe.