[Stockland Hillman]

It’s also, perhaps a bit more controversially, sometimes used for channels which aren’t ad-supported but are more “pop-up” and informal than a typical channel and only delivered via an online stream.

So, although not meeting the strict definition of a FAST channel, things like the BBC’s additional iPlayer streams are arguably also FAST or FAST-style - even though they are not ad-supported.

Interesting point, those popup streams do need a name, other than popup perhaps.

I've never, though, heard FAST used professionally in that context, except by a BBC person who used "The Facebook " and "world wide web" in her bit, and had a presentation deck so old sckool that I half expected the MS Word 00s Paperclip to pop up ask if she needed help.

Best not to mix them up, FAST and Fast (quickly deployed popups) are very different concepts, as FAST are full channels not time limited streams