Really? You could speak fluently simply watching TV? I think that's pretty much not the case. Living in Toronto, I had a number of friends who spoke English natively, and they had parents speaking a different language at home. They always could understand what their parents were saying, but couldn't really express themselves in that language. Simple talk was fine, but they were far from fluent. And those were people living in a house with that language all their lives. So, watching TV making you a fluent speaker seems pretty implausible.
My daughter understands English pretty well, but she speaks Japanese, even to me, in most cases, though I only speak to her in English. Without interaction in a true English atmosphere, on her trips to Canada, she won't become truly fluent.