Time travel is one of the more interesting plot devices in scifi movies. In this episode and the second in the series, Dr Boob takes us on a journey through parallel universes, causal loops and the nature of time-lines. We look at Back to the Future, the Terminator series, Futurama, Looper, Red Dwarf and Twelve Monkeys. By the end, it got a bit deep and my brain hurt! There are a few spoilers in this episode, if somehow you haven't seen these classic time travel movies. And please excuse my cold!

A good reference for attempting to explain the logic of time travel in the movies is Temporal Anomalies in Time Travel Movies.

Tune in to this episode here.