Just after 4:30 PM [local] one of my HR20-700s started showing tuner #2 771. Checked all of my other receivers and they all showed 771. Swapped the PI to see, but no go. Swapped the LNB with a "normal" Slimline & added in my SWM8. Nothing on any of my receivers. Barreled across the SWM to one location. Still nothing. Moved my H21-200 to this location. Instead of searching for SAT it was stuck on 0% guide data. Swapped another Slimline LNB [this time the one that came with the SWMLine]. Nothing. Back to the HR20-700 and "found" a 40% off the 119 #12. So far everything else has been zero and when on a SWM they were all zeros also. H21-200 show tuner failure in system test [good grief] with good LNB test. Moved everything out to the dish with a short "test" coax. Fell off the ladder [ouch] well the ladder tipped over with me on it. Dish was rock solid and hadn't moved. Tried both non SWM LNBs and several "off the shelf" older HD receivers. Nothing. Pulled out my old AT-9 The HR20 booted and found the SATs. The H21-200 was still at 0% guide data. Brought everything back in and connect off my AT-9 & SWM8 and it all works [now]. I wouldn't wish this on a dog: One SWMLine LNB failure, Two "back up" Slimline LNBs dead out of the box. One H21-200 that only works off a SWM system. As Garfield would say "You know it's Monday when...." So with Earl gone, who you going to call? [ghost busters]. Time now 9:24 PM [Five hours of ...... later].