I think how you couldn't really zoom a video in the 1970s short of printing it to film and doing optical tricks. By 1980 you started to see frame buffer effects in commercial TV and you could have zoomed but didn't have enough pixels to do much.
In the digital age zooming video is completely routine and if you've got a picture with absurd megapixels you can do it in a big way.
Pro equipment can reach prices that seem unbelievable to prosumers.
https://youtu.be/RkTaMyatsTo