Don't Forget the Diver

#The episode title pays homage to the wartime catchphrase of [[Tommy Handley]] in the ''[[It's That Man Again|ITMA]]'' radio series, "Don't forget the diver sir; do not forget the diver" about the character Deepend Dan.

#The episode title pays homage to the wartime catchphrase of [[Tommy Handley]] in the ''[[It's That Man Again|ITMA]]'' radio series, "Don't forget the diver sir; do not forget the diver" about the character Deepend Dan.

#The episode sees the first appearance of Robert Raglan as Captain Square's Sergeant. He would later return in a semi-regular role as the "Colonel".

#The episode sees the first appearance of Robert Raglan as Captain Square's Sergeant. He would later return in a semi-regular role as the "Colonel".

#Mainwaring says "stupid boy" three times in this episode, once where Pike stands on the air pipe connected to Fraser's diving suit during a rehearsal for the exercise, again when he nearly gets caught on Fraser's lifeline and air pipe when Pike accidentally holds them at waist height during the rehearsal, and once more when Pike has difficulty cutting through a wire fence during the actual exercise.

#Mainwaring says "stupid boy" three times in this episode, once where Pike stands on the air pipe connected to Frazer's diving suit during a rehearsal for the exercise, again when he nearly gets caught on Frazer's lifeline and air pipe when Pike accidentally holds them at waist height during the rehearsal, and once more when Pike has difficulty cutting through a wire fence during the actual exercise.

==Radio episode==

==Radio episode==