I discovered the following undocumented keyboard shortcuts...
Alt-M - Switch to Default window view
Alt-R - Start Recording (same as hitting OTR, adds 15 minutes to timer)
Alt-P - Go into Pause mode
Alt-Q - Pause TV
Alt-Y - Skip back 10 seconds
Alt-N - Stop recording or exit Pause mode
Anyone know of any other undocumented keyboard commands? I have a universal remote I use to control my PC and it only operates off of keyboard commands. I'd really like to find the keyboard commands for skip forward 10 seconds and ffwd and rwd.