Unlike
The James Whale Radio Show (1988), Whale On was only recorded "as live" rather than being an actual live show. This is reflected in this edition by the widely varying scheduled start times on all the different ITV regions.
While most of the regions placed the episode in a typical 1:05am timeslot, the Central Region had it listed for 12:45am, while the Meridian region didn't have it planned for broadcast until 2am. However, the latest scheduled start time was 2:35am for the London region, meaning the "live" show began in the London region a scheduled 45 minutes after it had ended on Central.