Thank you for using our answers forum! That's a great question! There are two other ways, I know of that will allow you to view the channel that you are on. You could go to the D-Pad, and press the up direction. This will show you what channel you are on and normally when it will be over. Another way is to simply press channel up, and then channel down. With most cable boxes, when you change the channel, the channel number you have changed to usually briefly pops up on the screen.
Hope this helps!
The Sling Moderation Team