that tft site is ok, but the data is a bit outdated.
eg. my dell IPS monitor is way faster than all my TN screens, my TN screens cant even keep up with me moving my mouse around (yes I can visibly see a trail). My dell IPS (2209wa) performance feels like a CRT, prety much no shadows/trails on anything. Of course dell withdrew this monitor quickly because it was TOO good for the price.
On TV's you unlikely to come across TN panels as they designed for tv/movies mainly which TN isnt suited for, so it will generally either be VA or IPS. The samsung TV's should typically be S-PVA panels. But since tech is changing all the time, a VA panel of 2013 is probably vastly different to one of 2006 in lag etc.
I have 2 IPS screens in front of me now and they are noticebly different to each other. The dell has almost perfect viewing angles, pretty much no distortion whatsoever even at 178 degress, the IPS next to it one I got earlier this year (half the price I should add so I expect corners cut) has noticebly worse viewing angles, less sharp image but does have better contrast ratio due to been LED backlit and is proper HD with hdmi (the dell has no hdmi port and isnt full HD res). Also my dell is true 8 bit colours with the newer IPS been 6bit+FRC.
The sumsung tv you picked by the way is also LED backlit.
What I noticed with my samsung, is there is 2 block modes. One (I think the default) offers more black/grey detail, so you see more shades of grey but at the expense of brighter blacks, so black isnt so dark. The other mode has darker blacks but you lose black/grey detail, so grey eg. can also look black. In games I expect detail will be important so you will probably end up using the mode that has less darker blacks.
BT Infinity 2 Since Dec 2012 -
BQM