Ill just add that I just did a test.
I shot in 1080/50i and also 1080/50p for 4 seconds with the camera still.
The file size of the 1080/50p was a little higher and I think it was also a little clearer.
Also when I right hand click on the 1080/50p file and go to details it DOES say that it is 50/frames per second.
I suppose the annoying thing is is that why does the menu have all the options of -
But the 1080/50p option is to the right on its own and has none of these quality options underneath it ?
If it is the better option then why not put it in the "full auto" settings. Is it maybe because they think the file size is too big for the basic user of this camera ?
I also read somewhere that all this confusing information is read differantly according to which country the camera is.
I am from Australia and from what I have seen on the internet this camera is mainly a UK camera.