MythTV 0.27 was released last September with numerous enhancements
and now available is its first point release that has hundreds of fixes and other minor improvements to this popular open-source PVR/DVR software.
MythTV developers claim v0.27.1 is their "best release ever" and while it doesn't offer any fundamental new features, it has over 340 improvements. MythTV's LiveTV support has seen a lot of code improvements in particular and received "extreme levels of attention."
More details on MythTV 0.27.1 can be found via MythTV.org