I have been a user of MediaPortal for a number of years now and I am happy that I made the switch from Windows Media Center. As much as I loved WMC, I started getting frustrated having to manually configuring EPG and guide data for my DVB-S2 satellite cards.
When I discovered the Custom Data Grabber plugin from DJBlu that just pulls all the guide data and channel line-ups from Sky automatically (saving me hours!) I was hooked on MP!
This new release has an improved TV experience that will display things like audio channels, bitrate, etc.
Go and have a look here: http://www.team-mediaportal.com/mediaportal-download