Does Channels app support numeric keypad entry?

Does the Channels app for Apple TV or Android (Nvidia Shield TV?) support numeric keypad entry?

For example, can I navigate directly to channel 510?

Obviously the Apple TV remote doesn't have numeric keypad, but you can use an iPhone to enter text/numbers and my Control4 system communicates using IP control so it can also send characters, etc.

Yes, it is supported on Android TV and Apple TV via bluetooth keyboard/remotes. See for example how to setup a Harmony remote to do it:

Thanks so much for the information!

There is also an HTTP api you can use to change to a specific channel: