volo tv is only fitted to D coaches!!!!!!
I would agree that it is fitted to a carriage that is usually labelled coach D and 4th in the rake.
However carriages are shuffled around frequently (we often get ABCCE, ABDCE, frequently lose E or B) and the
CIS▸ at Oxford this morning definitely said coach E (I thought it looked odd and waited for the scrolling display to repeat)) and this was the missing coach this morning.