You need to open a second window to utilize the second tuner, and instead of prompting you to open a new window if you're recording something, it suggests you stop it to change channels. The EyeTV software is a little quirky in that you can only watch or record one channel in a window. Only during HD programming did the feed stutter and hang, and a wired connection helped here as well. (You can toggle it to full-screen as well.) Watching the local CBS affiliate, as it appears on the EyeTV software.
