You knew it was coming… Once Microsoft entered the space with Media Center Edition, it became inevitable many multimedia software pioneers would be killed off. On the other end of the spectrum from MCE, you’ve got MythTV which is both full featured and free. That doesn’t leave much room in the middle… It will only get harder to compete as the world migrates to digital — without QAM (you listening SnapStream?) or CableCARD support these guys are dead in the water.
I tried out ShowShifter a few times on one of my early HTPCs and projector about four years ago. R.I.P.