I love this episode. Interesting fact, the OG Cybermen shooting from their head lanterns is actually a thing taken from the novelisation of The Tenth Planet, so instead of using the strength of their hands to knock people out, eg. (General Culter & Polly) like in the TV version, in the novelisation they knock those people out with a ray from their lamps, & still kill people from their chest weapons like in the TV version.