Re: Children in Need 2012: Christmas Special prequel + trailer
Also, Vastra and Jenny were quite nervous, twitchy and very eager to appease The Doctor. Its very unlike their confident selves in AGMGTW who even challenged the Doctor's motives and ideas. So these might indeed be their younger selves.
I didn't take them as nervous or fearful of the Doctor. More like desperate to help a friend out of what seems to be a deep depression.
Batman does not eat nachos.