Easter egg: On the second disk, go to the subtitles menu, scroll to the second option down and press right. This will bring up the words "Doctor Who" underneath. Press enter to watch him standing trial before two sock puppets.
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.
Doctor Who and the Silurians - S7-E2
Easter egg: On the DVD click play all on the 2nd disc and when episode 7 finishes watch through the credits and it shows the trailer for the next story, The Ambassadors of Death.
The Tomb of the Cybermen - S5-E1
Easter egg: If you highlight play all, press left twice and then up the doctor who logo is highlighted. Also when you highlight that press right then left and a ring will appear around the doctor.
Easter egg: To get the "extra special DVD feature" on the 25th anniversary edition of The Five Doctors, go to the audio options in special features, highlight companion commentary and press right - the Doctor Who logo should be highlighted. Click and enjoy.
Easter egg: On the U.K version highlight play all and press left then select.
Easter egg: Doctor Who Exhibition Blackpool: This clip is located after the end credits of the fourth episode of the story, and will play automatically for anyone who sits through the credits. (UK/Region 2) (01:38:00 - 01:38:30)
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