Sean’s WMC Backup

Stand-alone .exe, No installing!
Back-up/Restore your recording schedule
Back-up/Restore your channel lineup (experimental, may or may not work)
Query your list of recordings
Quick and easy

Advanced features –
Force Guide update
WMC Factory Reset
Adjust Live TV Pause Buffer
Adjust Skip Ahead Interval
Adjust Instant Replay Interval

If you are looking for a tool to modify your tuner/channel lineup, checkout 1geek1’s Guidetool (Site seems to have been retired.  Hosting their last version here for posterity.)

Sean’s WMC Backup