The show rewards culturally savvy fans with elite in-jokes, not to mention textual messages that can only be seen by freezeframing individual scenes on a VCR.

Matrix-M has pronounced immunopotentiating properties and has been evaluated in combination with a pandemic virosomal influenza vaccine in mice [42 ,43 ] and humans [44 ,45 ].

[…]And if I open fire - again, reading into the fact they've come clearly cleared for action and there is a mutual defense pact in place - well, I might survive a few fractions of a second longer than I would if I pointed my guns straight at them, but I'm still not really gonna be coming out of this intact, so... I'm not suicidal; I'm not gonna actually fulfill any of my mission objectives by getting myself blown out of the water; so, yeah, I - I would be frantically radioing the Kriegsmarine headquarters, saying please, could I have some new orders, or, if I am going to have to die, can you please confirm that that's the case?[…]

Wouldnae even offer Jock Stein – your greatest ever manager – a seat on the board 'cause he wasnae a Tarrier.