Thanks Dave. Takes me back a bit.
Chris did a huge amount for Radio & Caroline too in the late 60s & early 1970s.
His cracking of analogue Sky cards, was great!
He would have been amused that Sky later accidentally hacked their own cards around 2015 - or some of them. They used the same cards during the change over from Sky+HD to the Q boxes, that resulted due to a card re-programming error - some Sky+ boxes that kept working encrypting long after the subscription had been stopped. REC & PLay keeps working, too. Due to the error, they did not need the refresh signal to keep them "Alive"
I've found several like that, at Car boot fairs. The first one in 2019 - & it's still working now The only way the card can be turned off, is if the box is connected to the internet !! (Don't do it) This effected both white & red cards.