Is there a way to transfer the image on my broken laptop screen to my tv screen?

ok my laptop screen is completely stuffed i cant see anything. its an Acer aspire 4741G. i usually have it hooked up to a tv screen in a 1|2 configoration so i have more room to put windows and things, so i can like drag it across is there a way to change the settings usuing only keyboard shortcuts(because i cant see what im doing) so the tv screen mirros the image on the screen? plzplzplzplz help i need mum to think nothing is wrong until i can get the part so i can fix it...