BBC and F1 should work once I overcome the current issues.

Hit a wall last week and had no other choice than to update from ffmpeg2 to ffmpeg4. Unfortunately the decoding API was changed significantly between the two, so I am still dealing with the fallout. ffmpeg2 was really unstable with chunked media though, so this will be for the best.

Seeking is now working in Media Source streams and quite well too, considering how complex it is compared to just seeking within a single file. Since I'm now internally dealing with key frames, I was also able to adjust the video frameskip code to jump between keyframes when catching up to audio (when there's a big enough delta between the two).

The current ETA for the release is by the end of May.