Remote learning is nothing new. Back around 1960 the telephone companies offered service and equipment for it, such as for ill children.
Years ago the Bell System developed a device to allow children who are sick at home to participate in school. I'm not sure how effective it was as it was audio only, but Bell used to advertise it. I heard the unit was actually built by Executone for Bell.
LIFE 1962 (home schooling device/service).
they also touted teaching by TV -- ABA 1961
GTE likewise touted teaching by TV SEP 1963
Side note: I'm not sure how much GTE's Automatic Electric worked with broadband carrier. AE had an affiliate, Lenkurt, that did extensive work with carrier and microwave.
Here is a AE/Lenkurt ad from 1951
(You may scroll through all of the above magazines).