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No, there's no general issues with connections- and with any soundbar and any TV it simply depends on what the model numbers are. Samsung TV's use HDMI ARC or Optical for their audio output. Some Vizios have optical connections, some do not. So when you purchase your Vizio- make sure to ask the salesman if it has an optical connection and you will be all set.
The only times there is a problem is when people purchase a soundbar with no optical port and the TV has an optical port. Just make sure the Vizio has an optical port and you will be all set.
The model below has this port:
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