Yeah it’s actually around the 30s (or 60s, depending on whether you consider interlaced frames to be ‘true’ or just ‘halves’)

A CRT television runs at 60Hz because it uses the alternating current from the wall as a reference, but in every half cycle it only actually draws half of the image. “60i” as they call it.

So you can say it’s 60 interlaced frames a second, which is about comparable to 30 progressive frames.