[vr000m]

Agreed, all of the early HTTP based streaming was about HTTP progressive download. Microsoft’s smooth streaming was dominant in the early 2000s used it too. Glad that Twitch has been using it.

For me, DASH and HLS are just manifests or playlist definitions, of how best to find the resource. It is not dissimilar to webrtc signalling, i.e., go to a resource to discover where to get other parts of the resource.