I'm watching this and I agree that the quality of the show is good. It is also based one of my favourite films, so what is not to like? My only problem is that I keep thinking that I already know the ending, so how can it keep up any suspense?
The two watches from two time periods brought together caused their mutual annihilation. This leads naturally to the idea that two Coles brought together from different time streams would result in the same mutual annihilation (Very different to the Continuum plot, and I predict this will happen soon.) Except, the body practically renews itself every few months; replacing atoms with different atoms. So, theoretically a living organic thing would be immune. I wonder if they will experiment to test this.