Thank you for using our online answers forum! There is not an audio sync adjustment setting associated with SlingPlayer for Android, as of right now. The issue is because your are connecting through Bluetooth, which tends to slow the connection. As for the channel guide, it should show the name of the station to the left. Usually, it shows the logo of the station and the abbreviations for the station. If it does not, you will want to ensure you have the latest version of SlingPlayer for Android. If you login and go to settings, go all the way to the bottom and it will tell you the SlingPlayer version. The latest version is 2.4.3. If yours does not say that, I would recommend uninstalling/reinstalling the application. Closed caption is a feature in SlingPlayer 2.0. Which is known as our legacy Desktop SlingPlayer. Below is a link that shows that. If you are using Watch on Slingbox.com, there is not a feature built in to the SlingPlayer. The only way would be to turn on closed captioning on your set-top box, if it has it. Feel free to reply if you have any other questions.
Hope this helps!
The Sling Moderation Team