Forcing orientation in Android

Some apps want you to hold your phone in a particular way.  They want the screen to be tall instead of wide.  Although I understand only wanting to support one orientation, it makes it difficult to use the app on a device that does not physically rotate.  Specifically, I can't rotate my TV!  I find it very frustrating when I start up an app on my MK802 and the screen orientation changes.  That change automatically changes how the mouse works as well.  When I try to move the mouse down, the mouse actually moves to the right, since the right side of the screen is the bottom side of the app.  It becomes very difficult to close with the mouse.  Luckily, my Mele Air Mouse has back and arrow keys that allow me to exit most applications.