List of HDTV's with 120Hz native refresh ability (forcing 1080p@120Hz via DVI or HDMI from computer)

The bleeding edge art of overclocking an HDTV to 120Hz...

True 120Hz from PC to TV:
Make Your HDTV Accept Real 120Hz Refresh Rate



In the last few years, HDTV's have gained more internal electronics circuitry to do 120Hz. Internal 120Hz processing. Frame-sequential 3D at 120Hz (60/60 per eye). New HDMI 1.3a with enough bandwidth to pass 120Hz at 1080p if tasked to do so (unofficially). Finally, the whole chain finally made it possible to do TRUE NATIVE 120Hz on several televisions, from a computer, at least unofficially. In addition, some computer users overclock their computer monitors to a higher refresh rate than reported by EDID (e.g. Catleap 2B, or the QNIX Q2710 Evolution 2, or the X270OC). Dozens of success reports are coming in!
HDTV Overclocking Instructions: Get 120Hz from a PC to a television

Also, improve your successes by:
-- Using a high quality HDMI cable (3D / 4K compatible) even if the HDTV has only HDMI 1.3 ports
-- Try all ports on TV
-- Try all ports on computer
-- Do not use any adaptors (Do not use DVI-D to HDMI adaptor)
-- Bypass your receiver if it's an older one (Not all receivers can pass 120Hz HDMI)
-- If you fail, there's always 720p@120Hz which is much easier.

No fake frames. No interpolation tricks. No Motionflow voodoo. True 120Hz!.
Try this with your existing HDTV. Post your success reports here.
Edited by Mark Rejhon - 6/15/13 at 8:49pm

This means this TV is a probably a "frame skipper", then (that's what the HardForum and 120hz.net people call those refresh rate overclocking failures). That means it only displays some refreshes (e.g. every other refresh at 120Hz) -- this has been observed when you try to overclock the refresh rate of certain flat panel computer monitors (e.g. running 75Hz on a monitor that only does 60Hz, sometimes results in a lot of judder if the monitor's electronics can't synchronize the panel refresh to the signal refresh).

I'd love to see more tests on other models -- anyone else dare force 120Hz from their PC to their HDTV?

Please do. I hear really good things about Panasonic VT50 and ST50. It's useful for the high end HTPC users who have Geforce GTX680's and similiar, that can play games at 120fps!

When you say "more heat output", do you mean more heat output relative to 60Hz (that'd probably be normal), or more heat output relative to 3D output? (that's bad, bad -- could fry the TV). Some TV's generate a little more heat in 3D mode than at 60Hz mode; so it's natural to see 120Hz generate as much heat as 3D mode. (3D mode is 120Hz as 60/60Hz per eye.)

Test the racing car animation in PixPerAn, to make sure that you get 50% less motion blur at 120Hz than at 60Hz.
Edited by Mark Rejhon - 11/11/12 at 11:31pm

Any updates?

I have now posted a brand new HOWTO:
HDTV Refresh Rate Overclocking HOWTO

You can use the PowerStrip method of overclocking, if PowerStrip still works with your graphics drivers.
That said, there are much easier methods -- EVGA's Pixel Overclock utility -- and ToastyX Custom Resolution Utility.
These methods override the EDID of your display.
Edited by Mark Rejhon - 6/11/13 at 11:23am

Updated with new success reports of true 120Hz native from PC, from reports at HDTV Refresh Rate Overclocking HOWTO: True 120Hz from PC to TV

Excellent success rate on Vizio and Panasonic televisions made in the last two years.
Edited by Mark Rejhon - 6/11/13 at 11:29am

Added new displays discovered to support TRUE 120Hz:
Edited by Mark Rejhon - 6/14/13 at 8:38am

Added:

1920x1080i@120Hz is a very interesting addition to the mix.
Can you also test 720p@120Hz?
Have you used Refresh Rate Multitool to verify that it looks smoother?