Motorola High-Definition Off-Air Receiver (HDT101)
HDT-101 has a known defect
I bought a used HDT-101 and now wish I hadn't. It worked great for about 6 months and then locked up, it wouldn't do anything.  The display said 0000.  I called Motorola tech support hoping they could tell me how to do a reset.  They admitted this is a known chipset problem and the only option is replacement of the unit.  Since I'm not the origional owner they won't do anything for me.     Update: After a lot of talking and writing the departments listed on the Motorola website they have agreeed to take the unit back and refund what I paid for it.  This was a surprise to me and actually I wanted them to repair or replace it but this is fine with me.  Since I bought it used I am very surprised they would go this route instead of repair/replacement. This unit has been discontinued.