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?