Karen wants to know how to make her TV sound better, especially for vocals, which are hard to hear. Leo says that vocals are mixed to be part of the center channel and if she don't have a home theater system, it can be a common problem. Leo recommends getting a sound bar. Vizio makes a good affordable one. She should also get one with a subwoofer. Then she'll have the ability to hear the center channel better and can even turn up the center channel alone to help with dialog.