Comment True, but... (Score 1) 419
True, Betamax is not of the same family and quality of Betacam, but Betacam was born of some of the concepts of Betamax - primarily tape size.
This site has a little information on the birth of Betacam. Certainly, the fact that consumer Betamax was a superior format out of the gate gave Sony's engineers a head start on development.
No, they're not as closely related as VHS & S-VHS, but there is a little more connection beyond just the Beta name.
Granted, I just operate the stuff. I'll have to ask my father-in-law (he's been a video engineer since there's been video to engineer) about the differences in how the signal gets recorded to tape and whatnot.