Can I view sky mobile tv app on home cinema system?

Panasonic home cinema system model number SA-PT470. Panasonic TV model number TX-L32U10B.
Is it possible to view my sky mobile tv app on the tv using the home cinema systems iphone dock? I have managed to view films that are on the iphone and music, and can get the sound from the iphone sky tv mobile app on the tv but no picture. I have tried changing the input from AV to HDMI, I have both scart and HDMI cables installed etc but still no joy. I have changed all the settings I can think of on the tv and home cinema system but I am still unable to display the picture from the app.
Please help.