In order to use the splitscreen feature, you'll need to be playing in at least 720p resolution, which requires an HDTV and an HDMI or component cable. You can play splitscreen on any of your existing worlds. Uncheck the "Online game" box. ▷START on the second controller. This will open the Sign-In window. You'll need to have created the profile before starting the game if there isn't a profile for the second player. You can have up to four players sharing the same screen.

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Write a summary of the previous text in Vietnamese:
Đảm bảo rằng bạn đang chơi game trên HDTV. Tạo ra thế giới mới hoặc tải thế giới có sẵn. Nhấn . Lựa chọn hồ sơ cho người chơi thứ hai. Lặp lại các bước nói trên dành cho những người chơi khác.