Robert Malchman’s take on the subject:

Did you watch Timeless, which ran from 2016-18. [Ed.note: No]It was kind of like Quantum Leap "trying to put right what once went wrong," but much more morally ambiguous. If you have Amazon Prime and you haven't seen it, I recommend it.

Brett Battles’ Rewinder trilogy belongs to the “step on the butterflies” canon, as the antagonist deliberately sets out to destroy civilization, out of spite for protagonist Denny Younger. The multiple timelines are confusing but engaging.

When I was young, time travelers usually tried to avoid changing the future on purpose. Here, that is the core of the plot. It turns out there are pivotal points in history (one fictional, the rest real) where a single armed person can massively affect the future. And no, nobody shoots Hitler. How about the timeline where the British Empire never lost America? Or the one where Genghis Kahn conquers Europe?

I am right; there are no little things.

More on Rewinder here