I agree with all the complaints about Android not being up to date, I have the same feelings. But when you have been told up front on this forum that this is an Apple first environment, is it really a big deal to spend $50 or so for a 2nd gen ATV 4K and get the full experience? It just isn't unless you are utterly opposed to anything Apple, or you have all your TV HDMI ports tied up.
This is the exact reason I bought mine before I moved to Florida almost 3 years ago, knowing that I was going to have to switch from TiVo to channels.
For those that don't like the ATV remote (I hate it), there are plenty of TiVo remotes that can be programmed to work with it. I use an old Slide and it works great.

