I have been informed by DirectV that "in order to receive our complete HD programming later in 2007 and TO AVOID LOSING ANY CURRENT HD PROGRAMMING YOU ARE ALREADY RECEIVING" you will need to install the B Band converter module in your H20/21 and HR20/21 receivers. I know that I will not be able to receive the MPEG-4 stuff with my HR-250 TIVO, but will I need the B Band converter for the HR-250? Am I likely to lose any HD stuff I am getting now with the HR-250? Important: How will the NFL HD package be broadcast? Is this going to MPEG-4? HELP!