Audio device on TV used as monitor is blocked

Original title: blocked devices.
I'm using a TV screen as my screen, I also like its speakers, but not knowing what I was doing then my TV will not play sound from my computer laptop windows 8, I changed the sound settings.
I hit accedently block this device and I don't know how to unlock.
How is that possible?

Zack

Your best Paris are the operating manual and the regulations of TV.  We do not know yet what TV you have.

Tags: Windows

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