But new episodes were coming out weekly after the first few seasons were released on Netflix.
Wikipedia: "It had fair viewership in its first three seasons, but the fourth and fifth seasons saw a moderate rise in viewership when it was made available on Netflix just before the fourth season premiere."
"Breaking Bad's viewership grew greatly as viewers binged the series on Netflix, helping to assure that a fifth season could be made. The fifth-season premiere had more than double the viewership compared to the fourth season premiere, attributed to the Netflix availability"