Cathedrals which I know are represented alongside Lichfield include Lincoln, Liverpool, Edinburgh, York and Wakefield, but please let me know if there are others so I can update this list.
The choir booklet reveals that on the day itself just an hour and a quarter (from 11.00am until 12.15pm) was allowed for the television rehearsal, with the recording starting at 1.45pm and finishing at 6.00pm.
While the original video that we were given had clearly been watched, we are grateful to the Archive of Recorded Church Music which has provided a link to a better quality copy in their archives.