Episode #4.7 - S4-E7
Factual error: Phony computer shenanigans happen when JP shows the rest of the gang the file he recovered from the trash; he plays a PX (Pixel32 file, unless it's meant to be some file for a fictitious app) like it's a full HD amazing video, straight from the bin without recovering it first. (00:33:05)
Answer: There's probably no particular reason. Sets and props on long-running TV shows often change as needed and for various reasons throughout a series run.
raywest ★