It's only available on Sony Android tvs but I'm sure there are some folks that would like to try it on other AndroidTV platforms. Here's the play store link https://play.google.com/store/apps/details?id=com.ibm.events.android.masters.tv
This includes Sony Series XBR: X940D, X940C, X930D, X930C, X910C, X900C, X850D, X850C and XBR X830C.
Nevermind. I found it here. Sorry if this site is spammy but it worked for me. Ignore where it says pc/mac it's the adroid apk.
http://www.dappsforpc.site/download-masters-amen-corner-in-4k-for-pc-windows-and-mac/com.ibm.events.android.masters.tv.html
I had to clear app data and cache but after it worked and it's 4k w/ low-ish bitrate and framerate so not the best for sports but the scenery looks nice.