Using the back button to exit a program that is playing

[Anita-K]

When I am watching a Sky channel program, particularly a box set when I want to watch something else I will try to hit the back key to stop playback and return to the main screen.  When I do this the program continues to play even though I have returned to the main screen.  I have to hit the pause button to stop the program to be able to look for something else.  Maybe I'm being thick but I cannot for the life of me work out how to 'stop' as opposed to pause playback.  Any suggestions would be greatly appreciated please.  

[Chrisee · Accepted solution]

@Anita-K it is the way the interface is designed to work to allow peope to look at the main menu etc withoutvdtopping thecshow they are watching you can of coursecpress pause.. The quickest way back to the main menu is pressing home.