TV

Arrow
3x04 The Magician
Not sure "actor you won't recognise in non-iconic costume" counts as a big reveal. The character's a big deal, but as the aforementioned reveal is not of who he is (even if you know, as many/most/all will, no one even says his name or something when he turns round), the fact he's a big deal doesn't count toward it being a big reveal.
Rest of it was alright, at least.

Miranda
1x04 Holiday [4th watch]
Classic.
[Watch it (again) on iPlayer.]

Puppy Love
1x02 Episode 2
Giving up on this. The characters are all unlikeable (all of them), most of them are incredibly irritating, and it's just not funny enough. There are cute dogs, but that's not enough to save it.
[Watch it (again) on iPlayer.]