Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buy this thing

Hooked up my HDVR and my Blu-ray disc player, each with optical output. There is a third input port for a future appliance. The manual switch allows one to choose from the three inputs the signal that goes the the single output, which then goes to my Bose sound system. For some reason, my LG plasma TV doesn't pass the sound through its optical output very well. The sound drops out occasionally when I run it through the TV via HDMI input and optical sound output. This switch took care of that for me. Now the sound is very good and I still get HDMI video to the TV. In short, I bypassed the HDMI sound to the TV and optical sound from the TV. Sound goes from my HDVR and my disc player directly through the switch and then to the sound system. The only drawback is that I have to get off my duff and walk to the switch to change the sound source. But I have to do that anyway to put a disc in the Blu-ray, so its a winner. Buy it.