In a few cases, the 64 bit EyeTV 4 software for macOS crashes after startup.
This often happens when you have installed an old version of EyeTV 3.
In this case, you should completely uninstall and then reinstall the EyeTV 4 software using the “EyeTV Reporter” tool. In “EyeTV Reporter” please also delete all preferences of eyetv.
EyeTV Reporter 64 bit: https://www.geniatech.eu/de/download/eyetv-reporter-64-bit/