Only the current version so far — new entries appear as the app ships updates.
まごチャンネル is a video players & editors app by CHIKAKU Inc. with 10,000+ downloads (about 20K estimated). +24 installs in the last 7 days. Released Jul 6, 2016. Install growth, rank history, SDKs and ad networks.
From the store listing: “It is an application dedicated to "Mago Channel" that allows you to add a channel dedicated to grandchildren to the TV of your grandparents who live apart.”