I can't stand CCs. I use them if there's something I can't understand, so I rewind, put them on, then turn them back off. But it really, really, really interferes with my viewing experience. My roommate insists on having them on, so on the common TV we're always toggling the setting back and forth. It's a bit of an issue if we're both watching the same show in the common room, but I have my own (smaller) TV in my bedroom, so if he wants to watch with CC on, I'll just go watch it on my TV the way that isn't painful.