OK, after a small hint Live TV does work on both Android and iOS. There is a huge difference between the desktop and mobile UI. On the desktop the "play" is on the window that opens when you select the item in the guide. It's next to the "record" button. On the mobile, there is a VCR-like arrow icon in the middle of the screen that I didn't notice before. It's there and indeed, both of our systems can play.
It's so different that finding everything is taking a while.
One big difference about playing live and recordings had the ability to "downgrade" the picture - ie, HQ vs SQ. That's missing and important when we run into the buffering problems (unless just by accident or design that is fixed)
Volume control was on the playback window, now it looks like we use the device's Volume control? Mute is way at the upper right.
The "skip" and mute buttons are placed way in the upper left corner, and are so small and close together that it's almost impossible not to hit an adjacent button at least half the time...
It would be way more intuitive to have the skip functions at the bottom along with the time line like:
(-10s) --------------Time line---------- (+30s)
That makes hitting the wrong one more difficult.
Why no volume control? It's present in the Windows UI. In fact, the Windows placement is more intuitive.
The old UI also had a "remote" that you could use to change channels. Either enter a channel number directly or "up-channel" or "down channel". Having to go to the guide is really inconvenient when changing channels.... Also, as a history lesson, the OTA subchannels have a habit of disappearing from the app version of the guide. If we're in an "off" period, the only way to get to them was through the remote (ie, I could enter 8-02 and get 8.2. This is relevant since the previous version just happened to make the OTA channels disappear... Unless that's permanently fixed too.
While we're at it, here's a few other things.....
The DVR Recordings ignores any folders set up to organize recordings on the Hopper 3.
With recording and Live TV the "controls" screen that you get when tapping brings up the skip, volume,etc doesn't stay on long enough. It times out before the action is completed, making selective skipping difficult (have to request screen each time.)
Meanwhile, the 20.2.50 version is basically functional for my usage model but I think I'll downgrade to the older version and give this one a few more revs.