Michigan iMac

I also have an EyeTV Hybrid #2009 and an EyeTV One that have worked great for years in the US with EyeTV 3 software on an intel iMac running El Capitan. I just bought a 2021 iMac 24 M1 running Sonoma. I know I will need to purchase an EyeTV 4 activation key for the EyeTV 4 software on the iMac M1. Does anyone know from experience if the older tuners will work with EyeTV 4 on an M1 Mac, has anyone actually tried it? The newer U6 tuner is $100 on Amazon, whereas the activation key purchase for version 4 software is only $30.