emdash to bar

I'm putting this topic here because it seems to be a simple request.

I'd like to change all instances in the TITLE tags from the emdash to a bar ( | ). A cursory grep turns up hard-coded instances of the emdash (&#8212) but it seems overly arduous to actually edit every file where this occurs--although that may indeed be what has to be done to make the change.

Is there an easier way, or is my assumption re: editing every instance correct?