Difference between 60hz and 120hz?

[platformmaster918]

Lafiel said:

platformmaster918 said:

see this is the problem I'm not sure what will look better or worse.  For instance this TV seems like it is great and gets a lot of great reviews

http://store.sony.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10551&storeId=10151&langId=-1&productId=8198552921666465689#specifications

yet if I want I can upgrade to a 120hz or 240hz without too much increase in price.  I found a Samsung that lists straight 120hz and I think that motionflow goes 120=60hz but will it have the soapy effect that I've seen on Vizios is the problem.  (wouldn't buy from Sony but on Amazon they're under $500

I just had a look around the internet and that pretty much confirmed to me that no TV actually has 120Hz input. HDMI1.4a probably is capable of transmitting such a signal, but it's only specified for up to 75Hz frequency at most.

So there are no straight up 120Hz+ TVs, it's all post-processing. The lower end the TV you go for is, the slower will be it's processors and the higher the latency these additional effects introduce. Still a great display will look great even without all that crap on.

I see.  I think I'll go for that set as it's the most affordable and seems to get the best reviews for its price.  Thanks for all the analysis and insight.