Edit the dvr-ms file names. (Names Vista Media Center saves your TV recordings as).
Here’s how to change the name / title WMC labels your tv recordings with.
In Regedit.exe Navigate To:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Media Center\Service\Recording
Add or edit the String Value – ‘filenaming’
%Ch – Channel Number
%Cn – Station Name
%T – Title of show
%Et – Episode Title
%Dt – Date and Time
For example - %T_%Et_%Cn
