Which TVs use a Fresnel lens?
I want to pick up a used Fresnel lens and I thought that all rear-projection TVs used them- but I just went and looked at a TV and it didn't appear to have one in it.
Are there certain types of rear-projection TVs that have them, and others don't?
Any info would be greatly appreciated.
Also, if there is somewhere else I am more likely to find out this information, please let me know- this was the only forum I know of (I'm usually in the garden section)