38. Broken Record
Episode: We’ll Always Have Paris (1×24)
In between Picard reminiscing about the broken hearts he left behind, a broken time continuum keeps popping up. This episode shows several time glitches and this one’s my favorite:
37. Kevin Uxbridge’s Confession
Episode: The Survivors (3×03)
The Enterprise finds a barren planet with only two Survivors in a home on an acre of grass. They’re bullshit detectors at red alert, they soon learn that neither of them are human; one’s essentially a great hologram, the other an alien life form. After not falling for the alien’s scare tactics and exposing his wife as totally not real, he breaks down and admits everything. Great performance by John Anderson.
Death By Troggles 
Yeah, this was a pretty nice mind fuck.
Hmmm, if he has the ability to do something as far reaching as that, why not the ability to undo it?
Maybe it’s more difficult to revive people as easy as Final Fantasy would have us believe.
Don’t get me started there! I’m playing IV now and you can bring people back to life…just not when the story wants them dead for good.