KBYU is an older, over the air station in Salt Lake, it's a PBS affiliate, so it's not likely to go to a national platform like smart device apps or TV platforms outside Utah.
BYUtv however, is another matter, it was designed from the beginning to be national and even worldwide (they do swap out some programming in other countries though).
Since this thread began, Roku has mushroomed into a user base of well over 10 million, Chromecast was released and is now a very close second and may well take over the top spot. BYUtv announced on the day of this particular post that they were now on another fast-growing platform, Amazon Fire TV and stick. BYUtv has been working with other providers such as XBox, etc., and are every so often announcing another addition to the lineup of devices that have it as an app.
Mormon Channel right now is only on the web, smartphones and tablets, and maybe one ohter matter, but it's needed anywhere and everywhere we can get it on to. The market for devices and operating systems is fragmented enough taht unlike over the air TV and cable/satellite TV, everything has its own ecosystem and you need to have a channel or aggregation on each individual platform for anyone to get it, and the only way to find content now for most devices is Youtube, but who knows about Mormon Channel anyway for the most part? The more its out there the more it will pique interest, they've seen it happen with what little they are on right now, even though those few platforms are the largest, it by no means is reaching to where all possible users are yet even among the biggest devices and platforms.