I showed this video to my son (8yrs old) and he didn’t recognise the computer, the analogue phone, or why they were talking so excitingly about sending an email. This why he was on a school-locked social media system on a Mac on his lap. Not a funny sound, nor cable insight! I then had to explain that you had information via your TV on teletext!
It just shows how far we have come in our life-time.