The Power of the Daleks - S4-E3
Easter egg: DVD. Power of The Daleks special edition disc 2, select special features, click enter, then go down to original title sequence film. Press the left arrow to highlight a pink rectangle then press enter to see the Derek Dood collection.
The Power of the Daleks - S4-E3
Easter egg: Power of The Daleks special edition disc one, select special features and click enter, then press the left arrow to highlight a pink rectangle, then press enter to see a cut scene of animation.
Answer: In 'The Five Doctors', three separate Cyberleaders are definitely used. So it's likely that Cyberleaders are like unit commanders, of which a fair-sized army might have several.
Daria Sigma