What's going on with F1TV?

I went to my computer this morning looking forward to watching the practice sessions, or at least the highlights, but even not watching live the feed is struggling... it'll play at a decent quality for a few minutes, but then you get the "three squares" animation, followed by either a reset to potato quality video or just an error message.

The problem is not on my end, I can play games without any lag or quality drop on GeForce NOW, which requires gobs of bandwidth.

So, what's going on?