Hi Dave,
I don't know much about the KIM system kernel (still need time to get all the details), but I remember that TIM is 6530-004 and KIM-1(PAL-1)'s ROM is 6530-003 and 6530-002, so I think you mean the KIM monitor TTY.
From what I know about the KIM monitor, it only outputs the necessary characters, not include the cursor, the block (or bar or underline) cursor is displayed by your terminal emulator like tera term.
Thanks,
Liu