Using this app you can watch live TV and view programs recorded by hardware connected to your Mac. Using the new AirPlay feature you can transmit both live and recorded TV from your iPhone to Apple TV. You should note that you will need to have an active internet connection to use this app.
EyeTV 1.2.3 is compatible with iPhone, iPod touch, iPad running iOS 3.1.2 or higher. This app is available through the App Store in the Entertainment category. It costs $5.99 USD. You can download and get more information about EyeTV 1.2.3 from here. [iTunes Link]