The TV software eyeTV used to be the best for the Mac. Since version 4 (switching to 64 bit) it has fluctuated between “works reasonably well” and “what’s going on here”. After the last update for macOS, an installed eyeTV instance does not start at all or hangs up immediately.
The brand new Ventura and macOS Monterey are affected if you have made the security update to 12.6.1. The problem now is that Geniatech only half maintains the software and has not yet published it as open source, so that the community could take care of it.
Users speak up about the problems in the forum here and here. Links to download an 8528 version are also posted there. This seems to have been officially available for download but also to introduce new problems. You can currently give this link a chance, it is at least on an official Geniatech server: http://file.geniatech.com/eyetv4/EyeTV4.0.0_8528.dmg (copy and paste in your browser if it does not work). In the second forum thread, another download link is also listed on a file sharing site, but we would stay away from that, because even if it sounds official, this is the way how malware will find its way onto your computer.
Conclusion of the story: Currently one can only hope that Geniatech gets the development under control or releases the software to everybody so that the open source community can take over the program. The current approach is simply not appropriate for a program that is still sold.