I'm running Window XP SP2 and had the same problem: Could not remove the TV Media folder because it was being used by another program or person. I used the following procedure to correct the problem:
1. Open the Task Mananger and under the Processes tab find and remove Explorer.exe
2. Still using Task Manager hit the New Task... button under the Applications tab.
3. Write cmd and hit OK to open a DOS command window.
4. Navigate to the "Programs Folder" using cd \ and cd program files
5. Delete the TV Media folder using the command del "tv media" (must use the quotation marks) and then remove the folder using rd "tv media"
6. Finally to restart the computer use the command shutdown -s :)