How many MARVEL fans do we have here?   :::sees hands being raised:::

Ok... Take it from a MARVEL fan that the DC TV series have been quite impressive.  But I haven't seen them all, but with what spare time I have watching an episode of Flash is certainly high on my list.  But all I've seen so far is Flash Season 1, most all of Flash Season 2, first episode of Legends, 8 episodes of Arrow, and probably 6 episodes of SuperGirl.  Along with these, my wife has seen seasons 1 through 3 of Arrow.  All were viewed from Netflix, and I've seen clips from the current seasons which looks really good.  I know I have a lot of catching up to do so I gota watch more TV.

I was watching Gotham and just damn! That series is just soooooo epic! Expect Bruce tho, he is a tool. Everyone else is just @_@

Yes they are, I love all of them.

You seem the best person to ask:

Where can I catch up on Supergirl Season 1?

It's available on Netflix

Oh... That show.  I tried that one, too.  I had almost forgotten it.

No shit?

Arrow is the only good one. Great show in fact.

Flash started off well, but gets silly (but thats because the concept is silly). Gotham is generic. Supergirl is awful and so is that Justice legend thingy.

I don't smell any so must not. 

That's a good way to lose credibility.