Yeah, that is from the TV series- I'm *pretty* 
sure it's from the scene where Kenshin first meets 
Misao.  She gets frustrated at him and keeps 
trying to hit him while he just bounces around in 
SD (really cute- can't remember the episode number 
off the top of my head, though.)

As far as telling the difference between the 
Movie and TV- there are subtle art style 
differences.  I can tell them apart (comes from 
watching a tad too much Kenshin) but I would be 
hard pressed to tell you exactly how they differ- 
especially because the art style of the TV series 
isn't consistant either.  

Another thing I was wondering about Movie vs TV 
cels- From what I've noticed, movie cels usually 
go for less than TV cels or equivalent 
poses/quality even though the movie is only an 
hour and a half long.  What determines that and 
why?