Welcome to Your Daily Nerd Thing. Last year several networks tried to introduce time travel shows. It seemed all of them would be canceled. However one came back from the edge and that show was NBC’s Timeless.
Timeless was the best of these time travel shows and it will be coming back soon. In fact if will be coming back this Sunday and NBC has released a bunch of promos for it.
One thing I really liked about Timeless was that each episode opened with a depiction of what actually happened in the historical event they would be visiting. Then during the course of the episode they would always end up making minor alterations to history despite their best efforts.