It's in beta testing at the moment.
If you are frustrated with somewhat complicated setup of the various XLMTV programs out there or perhaps you would like a GUI? I highly recommend
The beta is discussed here:
The primary focus for EPG123 has been getting reliable, accurate data into WMC and it does this very well and very easy. He has also built some channel management stuff for WMC in this beta for those that are still using it.
Take a look and see what you think, if you like it buy the guy a beer, coffee or chocolate.