If you are using a legitimate M3U8 link (for example, provided by your cable subscription for use in a third-party player like TiviMate), follow these technical best practices to ensure the stream does not buffer or fail.
Discovery Channel streams usually use HLS (HTTP Live Streaming), which uses the .m3u8 extension. However, some high-efficiency streams use MPEG-DASH (.mpd). discovery channel m3u8 link best
Suppose you have found a candidate link. Do not paste it into your browser (it will just force a download). Instead, test it using professional tools. If you are using a legitimate M3U8 link