The fact that you've never heard of it simply means you are uninformed.
I'm 58 years old and have been dealing with computers and video since 1979. Screen tearing is a real phenomenon which, while most common in video gaming also exists when any device sends frame rates at a higher rate than the display's refresh rate -- regardless of whether it is a computer monitor or a television screen. The 24 fps in the first article relates to that country's standard refresh rate of 50 Hz and not necessarily what the console's game frames per second might be. In video software, you will often find settings related to PAL vs NTSC and frame rates of 24.97 (25 at 50 Hz) and 29.97 (30 at 60 Hz).
Screen tearing defined:
http://en.wikipedia.org/wiki/Page_tearing
Vsync defined:
http://en.wikipedia.org/wiki/Vertical_synchronization
Refresh rate defined:
http://en.wikipedia.org/wiki/Refresh_rate
Pay particular note in the last link to this regarding displaying movie content on a TV:
"The combination of content production, playback-device, and display device processing may also give artifacts that are unnecessary. A display device producing a fixed 60frame/s rate cannot display a 24frame/s movie at an even,
Judder-free rate. Usually, a 3:2 pulldown
Judder#3:2_pulldown is used, giving a slight uneven movement."
"While common multisync CRT computer monitors have been capable of running at even multiples of 24 Hz since the early '90s, recent "120Hz" LCD displays have been produced for the purpose of having smoother, more fluid motion. As 120 is an even mutiple of 24, it is possible to present a 24frame/s sequence without
Judder on a well-designed 120 Hz display. If the 120 Hz rate is produced by frame-doubling a 60frame/s 3:2 pulldown signal, the uneven motion could still be visible."
"50Hz" tv-sets (when fed with "50Hz" content) usually get a movie that is slightly faster than normal, avoiding any problems with uneven pulldown."
Notice that the Samsung 240HZ display is an even multiple of 24. This television claiming better display of action scenes is not hokum and is quite factual in how 240Hz will provide a better viewing experience in both movies and console gaming, whether they make the latter claim or not.
Case closed. Buh-bye.