The photo of Five from the new broadcast shows him looking over the fence on the grassy knoll. This photo should not realistically exist, as there were no cameras that would have captured him from this angle other than the actual one used for filming.
When Luther gets off the car that previously got flattened under his weight, the car doesn't raise to the normal position.
The Colt Cobra used by Ruby in the television show is the hammerless model. Ruby actually used the model with an exposed hammer.
When Young Klaus conjures Ben after he dies, Ben has visible breath and footprints in the snow, which shouldn't be possible because he's a ghost.
Klaus conjures Ben's ghost. Ben's ghost appears as a teenager, but previously has appeared much older, suggesting that ghosts can age.