It's the "rumor" of the day. Yes, MPEG4 is the plan, but there's no date for hardware. AND, it's going to be tough for D* to completely turn off the existing HD sats in favor of MPEG4. HD tivo will be here for a while, heck, it's not Voom.
And if you are long standing D* customer, you should talk to a CSR in the retention dept. Tell them what Adelphia can do, and you may get lucky. I got about $250 off an HD package w/ HD receiver. When I got my HD Tivo, I sold the Samsung HD receiver on ebay for $275. So my HD tivo was far less than $999.
