I Have Plugged My Laptop Into My TV Using VGA But There Is No Audio Coming From The TV?

I Took The VGA Out Of My Computer And Into My Laptop And TV And I Can See Everything Clearly, Only Problem Is That There Is No Audio Coming From The TV, I Took The Audio Cable From The Other Computer, Put It Into The Laptop And TV But Nothing. Any Suggestions? I Have A Toshiba TV And Levono Laptop If That Helps :)