Help with new panasonic st50
 

Can any one help please!

I have just purchased a new Panasonic st50 but every time I switch on the picture keeps going on and off ,I can only think its trying to change the aspect all the time? I cant get it to stop, so annoying cant watch anything like this.

also every time I switch on I have to manually switch to hdmi 1 to get sky working, does it not automatically tune its self as sky is only thing plugged into tv ?

one last thing! how does the free Panasonic glasses work? no instructions with them ,cant get them to work with sky 3d?

Many thanks