Professor Hayter (Nigel Stock) and the Doctor (Peter Davison) in Time-Flight (1982).
The Doctor will explain all later…
Early in Part Two, in the rst iteration of a running joke, the Doctor tells Emma he’ll “explain later” why the Daleks always change their minds about exterminating himat the last moment - as they did at the beginning of the nal episode of Day of the Daleks (1972), for example.