I've never really watch Coronation Street or listened to Iron Maiden so can't really comment.
One thing about Coronation Street is that, after Last of the Summer Wine, it is the most depressing theme tune in TV history. LOTSW was particularly depressing as it was on on a Sunday night and always reminded me that I was due in school the next day.
Good Gods, I think this might be the second or third time in a year that I'm in agreement with Ian about something :)
My sister used to watch the omnibus of Eastenders on a Sunday - it was late morning or early afternoon I think, but that was my 'depressing Sunday theme tune' equivalent. That and 2 1/2 hours of Eastenders is enough to make anyone slit their wrists if you ask me.
It's strange, because Ski Sunday was really getting on for the last thing I'd watch before bedtime on a Sunday night as a kid, but the theme tune for that didn't give me the same 'Oh cr@p it's school tomorrow' vibe!