I have been looking at possible monitors I have on hand to connect to the RF output.
An old paper white monitor - unfortunately it is 9 pin TTL, not RF input. Maybe could find TTL signals in the lathe and connect direct?
Modern 16" digital TV, which has RF input - but says it only decodes digital (so no PAL or NTSC analog). It does have an AV input, so that could be a possible way.
So no quick connect options from me.
@sjdavies - do we know what format the RF output is - or what digital signals feed that RF converter?