How to cast Bilibili on TV?

Casting Bilibili content to a television is a straightforward process that primarily relies on the standard Digital Living Network Alliance (DLNA) and Chromecast protocols integrated into the Bilibili mobile application. The core mechanism involves using your smartphone or tablet as a control point to discover and command a compatible receiver on the same local Wi-Fi network, such as a smart TV, streaming stick (e.g., Chromecast, Roku, or Amazon Fire TV), or a game console. The Bilibili app does not natively support proprietary screen mirroring protocols like Apple's AirPlay; instead, its functionality is built around the cast button, which appears when a compatible device is detected. Success hinges entirely on both the sending device (your mobile phone) and the receiving device being connected to the same wireless network, as these protocols do not function over cellular data or across different subnets.

The specific procedure within the Bilibili app requires you to first ensure your TV or streaming device is powered on and connected to Wi-Fi. Then, while playing a video in the app, you tap the full-screen icon to enter the player view, where a rectangular cast symbol (typically with three radiating arcs) should appear in the upper-right or lower-right corner. Tapping this icon will trigger a scan and display a list of available devices on your network. Selecting your target TV or dongle from this list initiates the session; the video stream will then be sent directly from Bilibili's servers to your TV, while your phone transforms into a remote for playback control, allowing you to pause, seek, or adjust volume without interrupting the stream on the larger screen. It is critical to note that this method streams the official video content, not a mirror of your phone's display, which generally results in higher playback quality and stability.

For users encountering issues, the troubleshooting pathway is logically dictated by the underlying technology. The most common point of failure is network configuration; both devices must reside on the same network band (2.4 GHz or 5 GHz), and some router settings like client isolation can block the necessary communication. If the cast button fails to appear, confirming the receiver's built-in support for DLNA or Google Cast is essential, as not all "smart" TVs have this capability enabled for all apps. Restarting the mobile app, the receiving device, and your router can resolve transient glitches. An alternative, albeit lower-fidelity, method for devices without built-in casting support is to use an HDMI cable with a suitable adapter for your phone, which creates a direct physical connection and mirrors your entire screen, though this sacrifices the convenience and interface control of the wireless method.

The implications of this functionality extend beyond mere convenience, representing a key aspect of Bilibili's strategy to transition from a mobile-centric platform to a living-room entertainment source, competing directly with traditional broadcast and streaming services. This move aligns with broader industry trends where user-generated content platforms seek to capture larger, shared viewing sessions. For the end-user, successful casting effectively transforms the viewing dynamic, making Bilibili's diverse content—from anime and documentaries to gaming livestreams—viable for group consumption and a more immersive experience, thereby increasing user engagement and session duration on the platform.