Toshiba DST3000 HDTV/DIRECTV Receiver
It's not the greatest...but!
I purchaced a Toshiba 3000 unit six months ago.  It was connected to my Sony 53HS10 HDTV.  It is connected to both a channel master roof antenna and a Directv HD Dish. The unit tended to flash the TV picture when network signals burst.  I returned the unit for a second and the same problem occurred.  I only get the flashing on the 1080i mode. After a Sony service call and replacement of the outdoor antenna and a readjustment of the Directv dish the problem continued.  The picture 98% of the time is great.  After $89 monster cable and no improvement, I will live with the occassional flashing thinking that perhaps the problem is really the experimentation of the networks. My feeling is that the Toshiba and the Sony are not 100% compatable.  Potential buyers please be aware!