Another one that gets to me is the way "alleged" is getting pronounced these days. If it is used as an adjective "an alleged crime" it should be "alleg-ed" ... in "It was alleged" it is a verb and is a different pronunciation.
There are many similar words eg, aged (it was aged but an ag-ed person), (It was learned but a learn-ed person) So the rule is quite simple... so why can't even the bods on the BBC get it right these days.