I have a hard time agreeing that these new series fall under the category of Television. TV _is_ explicitly the format in which the content is delivered (device and delivery). It used to be broadcast live, whether over the air or by cable, and those formats required payment for said delivery.
Now actual televisions aren't necessarily part of the equation. Plenty of people are watching these series on their phones and laptops and tablets, and sometimes televisions, but not in the way they used to be delivered to said screens.
I agree that we're in something of a golden age for episodic story-telling. I agree that this story-telling was born from broadcast television. I don't agree that it, in its current incantation, can be plainly categorized as "TV".
In the same way that a mobile device is no longer a telephone, though we may still call it one from time to time, and a TV remote is no longer a "clicker", no matter how many times my parents call it one.