Streaming, rent, or buy Merlin's Apprentice – Season 1:
Currently you are able to watch "Merlin's Apprentice - Season 1" streaming on Amazon Prime Video, fuboTV, Amazon Prime Video with Ads or for free with ads on The Roku Channel, Pluto TV, Amazon Prime Video Free with Ads. It is also possible to buy "Merlin's Apprentice - Season 1" as download on Apple TV.
You can also stream the title for free on The CW, Plex Player, Plex Channel, Fawesome.