No install. Sign in with username and password at dgnstream.com/watch and play your list.
Download Android or Windows, then open your account. No account yet? Sign up starts a 3-day trial.
On the TV open DgnStream → Pair with phone, then /pair on the phone. Android TV / Google TV only.
Forgot your password? Email reset is at dgnstream.com/forgot (that page is hidden from search engines).