The only thing I have to answer is this.
I can assure you that the first vid is a VALID one.
In other words, Domna Samiou which is vid's creator for the national Greek TV,
had always evidence about her works.
Now some more infos ....
1. The man who researched for the Greek dialects in Kappadokia is Mark Janse -> http://en.wikipedia.org/wiki/Mark_Janse
2. There is the "Kappadocian Society of Evros"
which have a youtube channel -> http://www.youtube.com/user/kappadokesgr/videos
and also this site -> www.kappadokes.gr
If you want more examples of this dialect, you probably have to send them a message to the following form ->
I created this screen-shot to help you, since their page is only available in Greek
Hope I helped
Αυτός ο τόπος δεν θα υπάρξει άμοιρος φυσιογνωμιών.
Εκείνο που λείπει απ’ αυτό τον τόπο είναι η ικανότητα να εκμεταλλεύεται τις φυσιογνωμίες του