I don't have a direct answer to your question, but some of the Computer
stores sell a 'Screen Guard' that's like a Glare Shield that will fit over a
computer screen to cut down on Glare...   Now I don't know if what that does
is the Same as Refresh Rate issues.   And I also don't know if it would
interfere too much with the Fun and Action stuff on those types of games if
it changed the screen colours as part of its operation.
  But I wondered (if it's under 30 dollars, or if someone else here knows),
whether something like that could be bought to fit over a TV Screen too.
I've seen the 'screen guards' advertised from time to time in Computer
Fliers that come in the Newspaper.   I'm not sure that's what they're
called, but it's something like that.   HTH,   G.R.

Howdy!

Don't take this as a fact written in stone, but I BELIEVE (remember that my
memory isn't worth diddly squat) that different people with photosensitivity
can be sensitive to different frequencies.

The NTSC Signalling that is involved with traditional Televisions is 30
frames per second.  The actual flicker frequency does determine whether
there will be an impact on someone who is photo-strobe sensitive.  I would
imagine that the newer (and more expensive) LCD-based televisions would have
little or no flicker despite the NTSC signalling for one reason....LCD does
not and cannot react as quickly as CRT or other technologies.  Plus the
falloff rate will also make flicker appear to be non-existent.  Now this
would not protect you from someone videoing something like say a strobe
light.  You're still going to have risk from the actual show content.  Same
thing holds true for gaming systems.  Like something like HALO where you
have "lighting for effect"  Flickering lights and things like that to help
create a sense of the environment you're playing in.  In this case, your
choice of games will have an effect.

Hope this helps!

Jedi and Son