Comcast x1 + Tivo Premiere = no Tivo On Demand

After Comcast added the X1 box to my cable tv service the Tivo Premiere lost its On Demand functioning.



The Tivo Premiere will show what is available via On Demand, but when you try to play a program, it plays a couple seconds and then quits.



I even tried this on the PBS programs. No success.



Any suggestions?