So I recently got a vizio sound bar for my panny viera tcl42e3. Right now its hooked up through digital output since that's the only output I have on TV. I'm using a fiber obtics cable I just picked up at Walmart for $15. Well it worked well once I had everything hooked up then the next day I turned the bar n TV on and there was no sound. I went to the TV settings and under viera link settings I changed the sound to theatre instead of TV. The sound started coming in and out n sounded a little scratchy n then it finally adjusted itself and worked. I'm just wondering if I keep having to change settings when I want sound and why does the sound bar do that. When I have the TV off for a long period of time n turn it back on i have to keep messing with settings or unplugging and plugging it back in just to work. Any idea what I can do?