Ahh, the "original" LeCroy. The first LeCroy device I used was a 10 step attenuator box in 1973. During eight years working in two nuclear physics labs there were a fair amount of LeCroy electronics in the mix.
When I moved to chemical physics in 1980, partly for the one-room / one-person, lab experience I brought along nuclear physics techniques. One thing I needed was a TDC (time to digital converter, mentioned in the video). The first problem was that a CAMAC "crate" and the associated computer interface was beyond my now small budget. So, I built a "poor man's CAMAC interface" that connected a single CAMAC module to an Apple II (running the UCSD pSystem). The next problem was that the LeCroy 2228A TDC had a common start but eight independent stop signals while I needed to deliver multiple stop pulses on a single line. LeCroy was happy to suggest that I add seven mod wires to make that happen, and they said the warranty would not be affected. I also had to build an ECL fanout to shorten the pulses and supply them to all of the stops.
When LeCroy introduced their first oscilloscope it was a bit of a shock, but it was likely an outgrowth of their line of CAMAC "transient recorders". By then I was in industry and ended up building a LeCroy scope and arbitrary waveform generator into a large instrument, with the added fun of being a beta tester for the AWG. LeCroy discontinued the physics instrumentation lines in 2001 to focus on scopes, etc. At some point after that (I believe) they were acquired by Teledyne.
As for NIM and CAMAC, both were heavily used in nuclear physics, NIM modules (in NIM bins) were the analog devices, and CAMAC modules (in CAMAC crates) were the digital world.