Sharp TV for Cable Cutter; Channel Set and Previous not work

Customer has Sharp LC-nnLE830U. Like I have with many other Sharp TVs, I set it up to use IP control. Power on, power off, input changing, menus, channel up, channel down, volume all work well.

But this customer is getting rid of U-Verse, and is instead watching broadcast only. 2 commands are not working:

  • Channel Set
  • Previous (channel)
I can confirm that the commands are being sent (they show up as blue on Roomie screen), but the channel does not change to 7.1 or 42.1; nor will it change back to the previous channel.

Any thoughts?

We can handle that for you in support.

Thank you.