APPLE TV not appearing as an App choice on my ROKU TV.

I have two ROKU TVs in my home. Apple TV loaded just fine on one but I couldn't even find the APPLE TV app on the other ROKU TV via their Search feature. I was told that the ROKU TV that won't show the APPLE app might be old enough that ROKU didn't have a licensing agreement with Apple TV when that set was manufactured. I was told if I purchased a Roku Express 4K that that would solve the issue and deliver APPLE TV to the Bedroom TV.

NO SUCH LUCK.

Am I doing something wrong? Or did Roku steer me wrong when they told me to buy the Express 4K to make sure I can receive APPLE TV?  $40 down the toilet? And ROKU refuses to have one of their Customer Service people contact me to solve the issue!