Series 9 Episode 3 discussion

[Naivety]

I was rewatching this episode today (more often than is healthy me thinks!!) and I noticed in the bit before Harry and Ruth get in the car with Dr Kirby that there is a clip of the Embankment. I am sure that if you freeze it at this point you can see Harry half way down walking away. Then, after Harry walks away from Ruth after their fantastic scene, if you freeze it again, it is the same bit of tape.