Trying to figure out how I can get an HR24... 1) DirecTV refuses to guarantee the model of receiver/DVR they ship. Despite begging, they just sent me a refurbed HR21-100. 2) DirecTV discontinued all retail sales of their receivers/DVRs. 2) I've read that if you buy a receiver online, if it is used, you could end up S.O.L. because there could be large payments pending against the former account that the receiver was leased to. Where do the online stores get the receivers? So, where/how can I get a new HR24 ?? Advice?