If your cable or satellite TV provider offers Hallmark Channel as a part of your subscriptions, you can easily watch shows and movies on-demand through your Hallmark channel on Roku. This TV Everywhere channel has a complete listing Hallmark content on-demand, which comprises episodes of all recent original series and movies. At present, there are 30 original movie titles and content of two independent series (When Calls the Heart and Home and Family), however, the amount of content for these series might be limited.