Hang your heads in shame, Channel 5

Well, I too have heard 'coronated' (3 times). But the piece of information that has me shouting at the telly was given twice - and once by David Dimbleby, who really should know better - and was that the Imperial State Crown (the one on the coffin) was the crown placed on the Queen's head at the Coronation - when it looks nothing like St Edward's Crown, which has crowned every monarch since Charles II..!
That one weighs twice as much - which is why it's usually replaced by the ISC shortly after the new monarch is crowned, and why the ISC is worn to open Parliament etc. - but it definitely isn't the crown that is used to actually crown the new king or queen.

Thank you for confirming that - it was my thinking too, but I thought a Dimbleby would have got it right!