int urlCount = getURLCount(series);
            if (urlCount != that.getURLCount(series)) {
                return false;
            }

            for (int item = 0; item < urlCount; item++) {
                String u1 = getURL(series, item);
                String u2 = that.getURL(series, item);
                if (u1 != null) {
                    if (!u1.equals(u2)) {
                        return false;
                    }
                }
                else {
                    if (u2 != null) {
                        return false;