Thanks for your reply and input tb_atx , you seem to have expanded a bit more to clarify what I was trying to say about the Roku Channel “Live TV” app with the built in guide so that maybe a few others realize that it's not just about adding extra apps for each channel out there. They were all just offered there in the Roku “Live TV” app with a weekly menu. Although I personally miss certain channels, I failed to mention the ease of use for my much older mother who I am the principal caretaker. She can can navigate ALL the channels fairly easy on Roku's "Live TV." Although when a channel she likes disappears, it takes me a couple of days to explain that it wasn't her fault that it vanished. 😄 The TV's with Roku built in are even easier so I bought her 2 because it's so much more pleasant than trying and failing to teach her about Roku, Firestick and the multitude of apps out there. I just set her TV so that it automatically opens to "Live TV" without going through the Home Screen Menu page. I'm in the same boat as you with our Mother's tb_atx , it's just a generational thing, “old school” as you said. Thankfully she was familiar with navigating a cable guide when we had those.... I just made Roku perform exactly the same without paying over 300$ a month. 🙄
Anyway, I can't find any "publicly available information about how it's determined either as atc98092 mentioned. I don't think it has anything to do with a channel turning into a 100% subscription only issue either because I have a few Apps that include a "Live TV" area offering most or all of the channels that are gone from Roku.... Roku honestly just has the easiest user interface and speed. In any case I just hope eventually those channels return as well as a few others because even though I may have ALL of the apps, sometimes I just want to turn on the TV and go "Old School." 😁