I have been thinking about this on-and-off, recently. What is the difference between the Sagan Cosmos, and the Tyson Cosmos? There are lots of fairly uncharitable things to say about both of these men, but if we were forced to provide an actual explanation, I think three things could be said: Era / Audience. The original Cosmos was released in 1980. Not since the early eighties, have I felt the same sense of optimism and yearning for the promise of the future.
When I first entered the working world in the late nineteen-eighties, there were a few essential social ground rules that you had to learn, in order to be successful. The first was that my employer does not exist for my benefit. My role in the business is to provide some tangible value toward the end goal of the company: product and profit. To the extent that I benefited the firm, I would receive benefits in kind, after a bit of negotiation.