Refresh rate for a new LED TV...

Hey guys,
It's been a few years, and it's time to upgrade my TV. 
A few questions on the refresh rate.  Aside from watching movies, I like to play games (on PS4, when I can buy it), and watching primarily sports.  
So, in essence, I'm assuming I'd be one who would notice a higher refresh rate?  Is there a noticeable difference from 60hz, to 120hz, to 240hz?
Thanks!

Some thoughts...
how much is calibration?  how much is that TV?
some say TV's should be calibrated again after 6 months of usage where the TV has had some break-in.  How much is that second calibration???
some say they just run on theatre or cinema mode to save costs
some say they don't like the calibration and flip back to the normal, bright or vivid mode.  Personally I hate to see the highlights punched out and looseing detail for the brightness
some purchase Spyder or XRite calibration tools
some will use Apps to do their own calibration (note you need a cable or a wireless box), however you don't want someone who is colorblind making those calibration decisions (like me)
https://itunes.apple.com/ca/app/thx-tune-up/id5926​24594?mt=8
http://www.pcmag.com/article2/0,2817,2414804,00.as​p
http://www.youtube.com/watch?v=rOoizmYBHlo&hd=1
When shopping for a TV I visited several retailers.  For the stores who calibrated their displays.... I had a tough time deciding which one to get because they were ALL good.  I could not tell which one was LCD, LED, or Plasma.  Yes calibration is worth it, but how much do you want to spend?

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