The opposite of (online) live teaching is Programmed Instruction.
A distinction should be made between the event and how the event is diffused.
Let us ignore the kind of "teaching" for the moment. (PowerPoint Lecture vs. Workshop vs. Seminar)
An event that is diffused by some means as it is taking place can be said to be a live performance (live). An audience attendee with some smart device and a Skype, say, account could send it to a third party. The third party would be viewing the event live, diffused by Internet (online).
Right next to that individual is sitting another person with a smart device to record the event as it takes place. That file can be diffused by Internet to an enterprise that will store it for a person who will download it for view. Such is the case with "Podcasts."
The file can be viewed while held in a "cloud" online as with Vimeo or YouTube.
If not live, that any existing event has been recorded is implicit.
That leaves an event not online and not live.
Programmed Instruction is student-centred/student-driven and is not live as there is no need for it to be. Programmed instruction online is optimal; but, not necessary for acceptable results.
I submit therefore that the diametric opposite of (online) live teaching is Programmed Instruction.