Interesting thing is that hallmark has not added this channel to their channel finder on their website.
Either check messages on stb or check back on hallmark website to see what info they have when it launches.
So a quick google search showed the following:
1) Looks like other provider forums are being flooded with people asking when their provider is going to carry this channel. Answer is usually they don't know.
2) Going to Hallmark channel locator, they show NA for all providers. Except they say it is available on Sling Now and DirecTv now.
Looks like it may be a while (if ever?) on traditional providers.
And I saw on another forum someone posted they have SlingNow and it wasn't showing up there yet.