I know this looks like the wrong forum since this it Directv forum, but this DVR is being used by Directv for long time; so, I think this is the best place to ask. PLEASE HELP!!!!!!!!!!!!!!!!!!!! I have two HR-22 and one HR-20 (DIRECTV) and I have been able to find solution for most issues in here. (if not, I just ask for replacement). I just got a MHR-23-700 from SKY-MEXICO (I used to have SD non DVR before). I didn't get the LBN STACKER that requires so I did several experiments: 1.- I installed my SINGLE UNIVERSAL INVACOM (there is an option on the settings to select UNIVERSAL or STACKER) on both LNB ports using the splitter that comes with it (one port passes power, the other does not) and everythink worked great, of course, I have to be watching two channels on the same polarity. 2.- It was not very nice to have both tunners to the same polarity (more when I schedule a recording) so I disconnected one LNB port. The hard part is that the configuration does not give you the option to "disable" one port so I played with the options (change from UNIVERSAL to STACKER, then back to UNIVERSAL on the settings, conect both ports, connect one port, etc) What worked was to connect one LNB port and disconnect power for few minutes. When resetting, the box "knew" It had only one lnb and disabled the second by itself. 3.- Got and connected a TWIN UNIVERSAL LNB made everything work ok, but!!!! somehow I lost some channels. (thinking maybe the software is not optimized for UNIVERSAL I waited for the STACKER) OK, Finally I got the "STACKER" LNB and conect it. GUESS what? I lost some channels. Did I messed up the box? Behavior: There are two satellites: PAS-9 and IS-16 on the same place (58 and 58.1). I used to have all transponders when I first got it (Single LNB) but now I have all transponders (even and odd) from PAS-9 but the ones from IS-16 are acting funny: I should have 4 transponders on IS-16: 1.- 11720 H 2.- 11740 V 7.- 11840 H 8.- 11860 V I have 2, 6, 8 and 12 insteed. maybe 1 (11720H) and 7 (11840H) are being re-routed to 6 and 12? How is that possible? I check my voltage and I get the correct 12V and 18V respect........ Did I messup my box playing with the severeral LBN's? Again: The weird thing is that my PAS-9 transponders are ok (even and odd) Any idea how to fix this? It would take me a while and some money to send it back to mexico. SOME KIND OF SUPER MASTER EXTRA MEGA RESET? ( I tried the three resets on the options and even forcing the upgrade) PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!