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by onion2k 1296 days ago
strobing CRT monitors that don't line up with the frequency of the TV camera

I studied Broadcast Engineering for my degree back in 1997, and you could definitely shift the input signal to match the refresh rate of a CRT screen or a flourescent tube light on the Sony BetaCam TV studio cameras I worked with. I reckon the BBC would have been working with similar or better tech in 1995. I wonder if this might have been a directorial choice to show what viewers expect rather than any technical issue.

3 comments

While television refresh rates on both sides of the pond matched local grid frequency, did computer monitor refresh rates necessarily match? VGA for example supported 60 Hz but not 50 Hz according to Wikipedia [1]. So in the UK, I would think you could sync with fluorescent lights, or VGA monitors, but not both (unless you recorded at say 10 fps).

[1] https://en.wikipedia.org/wiki/Video_Graphics_Array#Technical...

In most scenes, the refresh rate is matched (Slightly off from the presenters computer in the internet cafe with the computer all most all other computers in the cafe set to a different refresh rate).
It's more likely that either they were working to a budget, or just didn't have the time to sync. I doubt they intentionally wanted the flicker