So clocks, right?
Every time pro's work with amateur gear, they complain about the clocks.
It's the biggest difference between professional gear and amateur gear.
When the videofreex tried to do a TV broadcast in 1970, it was the first problem the TV exec's encountered.
The freex knew how to fix it, but weren't allowed to touch the gear because they were not a member of the right union (and they were barred from joining the union because they didn't use the right kind of equipment.)
So it took three or four years before any television network successfully broadcast any video shot in a home video format.