Two routes to the big screen
The first is the television's own browser: Android TV, Google TV, Fire TV's Silk browser and most smart TVs open the site directly. Bookmark the address, search with the remote or the voice button, open a title, choose your country once, and press Watch now. The title opens in the service's TV app when that app is installed, which is where it plays in HD or 4K.
The second route is casting, and it is the quicker one. Open the title on your phone, press Watch now, pick the service, and cast from the service's app to the TV. The phone becomes the remote and My List stays open in your hand, which for an anime marathon is the better arrangement anyway.
Fire TV Stick
Start Silk on the stick, enter the address and bookmark it. The remote's keyboard or its microphone drives the search. When you press Watch now, the title opens in the service's Fire TV app if the stick has it; if not, the stick offers the install, which takes about a minute.
Chromecast, Apple TV and AirPlay
A Chromecast with Google TV runs the services as apps and accepts a cast from an Android phone; Apple TV does the same for its apps, and AirPlay from an iPhone works exactly like casting from Android. In every case the sequence is the same: open the title on the phone, press Watch now, choose the service, and send the picture to the screen.
PlayStation and Xbox
Both consoles run the streaming services as apps, the anime specialists included. Note the title and the service on 456Movies, open the app on the console, and start it there. The console's browser also opens the site if you prefer to search with the controller.
What plays in 4K
The service decides the tier from the title's best master, the plan you are on and the screen. Recent Hollywood titles and K-dramas are 4K on the services that carry them; most television anime is native 1080p and looks right in HD. The quality page explains which tier to expect.
