I grew up programming the BBC Micro Model B. Starting a new school they had a computer lab kitted out with Archimedes, and once the computer teacher realised I could use it better than anyone else in the school (mostly programming in Basic), she left me to my own devices in the corner of the lab whilst the other students played around with "Turtles" (if you remember those robots).
I owe my career and livelihood to the Beeb.