I found this old episode from the Friday the 13th TV series (has nothing to do with Jason Vorhees) My Wife the dog, where this guy wanting revenge against his soon to be ex-wife, curses her, causing her and this dog to gradually switch places. Youtube has the episodes broken up into 4 parts
eye swap at 10:30
she grows fangs and claws at 7:30
the final stages of the TF start at 0:20
Alternately, if you want to watch the whole episode, try this link and click play
http://www.free-tv-video-online.me/p...d=njxvlci383lq