Re: 3.8 : McKay and Mrs Miller
Enjoyed it but felt like a tribute to the 'Ace' episode of Red Dwarf
Do leather jackets make your duplicate cooler?
It was also a lot like the 6th season Star Trek: TNG episode 'Second Chances' with a girlfriend replaced with a sister. Though I have to say, there is plenty in the scenario of meeting a duplicate to use for many more stories, and this did do it particularly well.
I know there are only so many stories out there, I only mention it since this seasons writers seem to be mining the last few seasons of TNG. We just had Weir in the asylum being told that Atlantis was an illusion, very similar to 'Frame of Mind', and the B-story this week, which was about runaway technology damaging the universe, exotic particle pollution, something for nothing, and responsible science - reminded me a lot of 'Force of Nature' from the final season of TNG.
Anyway, it was a good 'human emotions' episode. Although Rod did get returned (and so unfortunately we won't see him again I guess) they didn't use a reset button to correct the loss of the ZPM, or to find some other work around. I like actions to have consequences that must be lived with.