So the first episode was pretty good. And dare I say it, better than T3.
I mean, in the first episode they take advantage of the continuity of the first two movies way better than T3 did. In fact, T3 barely remarked on the first two movies at all. In the tv show, they went as far as having Sarah and John visit Miles Dyson's house again! Excellent nod to continuity. The action is decent. The actors are decent. In fact, they're probably better actors than the ones chosen for T3.
I'd give it about 8 out of 10.