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Domestic televisions aren't rated to be left on full time although most commercial models are. There are few differences between them although power supplies, ventilation, cooling and internal monitoring tend to be uprated in commercial displays.

In either case, a display is likely to last for years if it in a situation where it is not becoming too warm and not subject to other adverse conditions. Although manufacturers are unlikely to offer such long warranties, a five to ten year life span is not an unreasonable expectation.

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Q: How long does an LCD TV last if you keep it on twenty-four-seven?
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