I think their myth was that you could split a wooden arrow from end to end.
LOL they didnt even manage to HIT the wooden arrow that accurately
I think with a very lucky shot it can be done.
the largest problem would be when the second arrow hits the arrowhead of the first
For it to "split" it as in the Robinhood movie. the first arrowhead would have to be deeply embedded in the target so that the shaft actually penetrated it.
Near impossible. yes. but with a lucky shot. not totally impossible.
Though there have been a few Mythbusters things they've done I've questioned.
I certainly wouldnt call them the "snopes" of mythbusting
entertaining show nonetheless