It's from the Special, not the tv series. I 
watched the special last night to confirm my 
thoughts about it, along with a friend.  However, 
as Jacque' pointed out it has many 
inconsistancies as far as what the actual cel 
looks like. The fact that the cel has no sequence 
numbers and the shading on his shirt is not 
there, when it is clearly evident on screen leads 
me to the same conclusion she had.  It looks to 
me as if it is a fan made cel.

SWolf
~ enjoying her last little bit before the 
computer is boxed up. Moving bites. =P