The Grand National was an English horse race that was advertised on 29 January 2025 by the display of a holographic horse just outside the HMS Belfast. The race was "not for a few months yet" on 30 January. (AUDIO: Energy of the Daleks)
Lucie Miller compared the Eighth Doctor's heartbeats to the Grand National after he received an electric shock from a Blitzen fish. (AUDIO: Relative Dimensions)