JP1 Remotes

Which file did you find? The one you want is this one:
https://www.hifi-remote.com/forums/dload.php?action=file&file_id=25290

It is a zip file that, in addition to the JP1 upgrade stuff, also includes a spreadsheet with all the known Roku commands, in Pronto hex format.

The code included for CBS ...

Global Cache says Sharp Roku TV is Sharp protocol, multiple devices, which we can do with Denon combo. Here's an upgrade I made from built in UEI TV setup code 2360:
https://www.hifi-remote.com/forums/dload.php?action=file&file_id=26013

Please give it a try and let us know.

Here's some pronto hex ...