Considering how bad the Slingbox Roku app is .. I would not expect anything useful from SlingMedia/Echostar.
TheTick
Roku 3 for Pokémon TV / YouTube / Animal Planet GO / HBO MAX. Chromecast for most other media because Roku Mirroring sucks , how many clicks in Wndows 10 (about a dozen) to Miracast on Roku vs 2 with Chromecast.
Verizon FIOS TV and Internet Service