I just installed this, so I can't say anything about how long it will last. But this device worked perfectly where other models I bought (from other manufacturers) did not work. My setup is the simplest possible - input from a cable TV box, outputs to two TVs. I tested this device under all circumstances, and it always worked - with either TV on or off, with a TV on but switched to another input, with either output cable unplugged, and turning the input signal (the cable TV box) on and off repeatedly. Every time, it supplied both audio and video to the connected outputs without any problems.
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