You'll need the Tutorvision exec (aka wbexec); there is a tutorvision grom file but it is optional as the standard Intellivision grom file would work.
Rename the Tutorvision system files exec.bin and grom.bin and place in the jzintv\rom folder. Jzintv recognizes the tutorvision exec and makes the necessary changes when running the emulator. Using jzintv is no different than with Intellivision cartridge rom files. Here is an example command.
"path\to\jzintv.exe" -z3 %1
Where %1 represents the filepathname of the cartridge rom file and -z3 is for 1024x768 resolution. If you're using windows you can place the above command in a .bat file and then drag and drop cartridge rom files onto it.
Thank you so much for your great help, mr_me-.