It was an okay episode, just one thing, it broke the basic laws of time travel.
Ok, I'm going to go out on a limb here and sound like a total scifi geek. You cannot see yourself in the future, why, because travelling in time is like going on a car journey whilst you're travelling in time you exist in no other place except your Delorean so you vanish at the point at which you set off and appear at the point of time you want to visit.
sorry watched Back to the Future too many times