I have found the BBC's Technology reporting particularly irksome. Their website is filled with re-hashed press releases. I even re-wrote an article concerning turning urea into electricty for them to show what it could have been like if they had put half an hour's effort into it, naturally I didn't even get a response.
Of course not. They thought that you were taking the piss in a shocking way.
I did once mail a correction to a story about a new EU regulation which had been a high profile item across BBC News. It was quite a fundamental thing, and I got a short mail from a senior editor, thanking me and angrily lamenting that it wasn't a difficult thing for his reporter to check, state of journalists these days, etc etc. The story was changed.