I usually find it hard to pay close attention to those weather network videos. I usually just read the text.
Basically, there are two forecast models they are using; one is from Colorado State University, and the other from North Carolina State University.
CSU is predicting a more-or-less average season with an expected 12 named storms. NCSU is predicting more activity with15-18 tropical storms expected. Either way, it would be more than we saw in 2014, and at least as many as 2015.
Or they could just be guessing. We will have to check back in December to see if either model was accurate.