You believe what you want...having built them I can tell you they don't (they use an electro reactive crystaline structure that is semi-solid but in no way a liquid that is sandwiched between what could pass for glass). This is done at a molecular level and the cystaline strucuture is orientated in a "twised" pattern (allowing all light to pass through), when power is applied the crystals "line-up" and will then block the light this change in orientation is what allows different levels of light to pass through...this light is then directed to colored filters to give it the red/green/blue color needed to make up the picture.
The initial state of the crystalline structure is liquid when it is first made but by time is makes it to your TV set it isn't any longer (it is applied as a liquid to the system then "sets".). Think of the analogy of ice...is was a liquid first then solidifies into a solid...but it is still "water" just in a different form.
As for freezing...any TV that freezes will be ruined.