Understanding TV refresh rates - 120hz.

[Whiffle]

I have been doing a bit of recent research on FPS and refresh rates and am starting to fully understand issues such as opera effect and 3:2 pulldown (I had heard of these terms but never really bothered to look into exactly what they were).

I now understand why a TV with native 120hz will give a purer playback of 24fps footage.

What I don't understand, now, is if a TV is natively 120hz, will that then not cause problems for UK broadcast shown at 25/50 fps (i.e. these numbers do not divide completely into 120)?

Or do all 120hz TVs automatically support 100hz natively too?

 

[Psycho Sonny]

I have been doing a bit of recent research on FPS and refresh rates and am starting to fully understand issues such as opera effect and 3:2 pulldown (I had heard of these terms but never really bothered to look into exactly what they were).

I now understand why a TV with native 120hz will give a purer playback of 24fps footage.

What I don't understand, now, is if a TV is natively 120hz, will that then not cause problems for UK broadcast shown at 25/50 fps (i.e. these numbers do not divide completely into 120)?

Or do all 120hz TVs automatically support 100hz natively too?

you will either have black frames inserted or some type of fake frame inserted or it will drop the refresh rate for the content. it all depends on the tv and how it decides to handle it. every tv will do it differently.

you usually only have issues with low fps content the higher the fps the issues tend to disappear. because with 50fps content. it doesn't matter as much if you manipulate it. but with 24fps it's noticeable usually causing a stutter or tearing, etc. most noticeable on fast panning shots.

 

[Whiffle]

Excellent explanation - thanks for that.