CAUSE
When you use the Media Center Extender interface to delete a recorded TV program, the file is not actually deleted from the Media Center computer until the session ends between the Media Center Extender device and the Media Center computer.
RESOLUTION
To make sure that the deleted TV program is deleted from the Media Center computer, turn off the power to the Media Center Extender device. Or, restart the Media Center computer. By performing either of these actions, you end the session between the Media Center Extender device and the Media Center computer. Therefore, any files that were deleted through the Media Center Extender interface are actually deleted from the Media Center computer.
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.