If you watch TV at all, you probably have. Syfy, E!, USA, the Weather Channel, the Golf Channel, Bravo, Oxygen, Esquire (formerly Style), Telemundo, as well as NBC, MSNBC, and CNBC are all tentacles of the beast. Plus, Universal Television produces shows on A&E, Fox, the Cartoon Channel, and other outlets.
I don't watch any TV at all. Don't have cable. NBC broadcast doesn't come in at my house, although CBS, ABC, PBS, and a couple of indy channels do.
I never watch any of them, but my son sometimes watches basketball games on CBS and ABC during the season (which seems to last about three-quarters of the year).
NBCUniversal also owns a big chunk of Hulu.
How about quitting Comcast, which owns NBC? I hate Comcast.