EyeTV Go can work with both a Mac and PC.
EyeTV – TV Software for Mac
The included EyeTV 3 software by Geniatech will turn your Mac into the coolest TV and DVR in the house. This award-winning software enables you to:
EyeTV 3 software offers special features for Mac users, including Smart Series Guides, Smart Playlists, automatic exports to iTunes, and support for the EyeTV for iPhone app.
THC – TV Software for PC
EyeTV Go is compatible with Windows 7 or later and includes THC software for Windows, which supports many of the same features as EyeTV 3.