DirecTV receiver is very sluggish in responding to the remote

Tried all of the tricks I’ve learned during the 21 years of being a DirecTV subscriber, many learned from telephone calls through the years to the DirecTV support line - even the technique to “re-format” the DVR’s disk drive.  Most recently DirecTV most reluctantly agreed to ship replacements to me - “re-furnished” 8 year old technology.  One receiver refused to “activate” after 90 minutes on the phone - so yet another refurbished replacement was dispatched to me.  That one took 35 minutes on the phone to activate.  If seems the DirecTV data base is a Charlie Foxtrot when it comes to having Card#s, receiver #s, Model #s, and subscribers in sync.  Adding insult to injury,  the technicians assured me I need not return the defective units to DirecTV; however, one unit’s instructions said “re-cycle locally” and another said “Thou Shalt Return The Box Without Delay or face a substantial billing charge.”  Two follow up calls gave the same conflicting information.  As I live in a large house requiring several WiFi access points, I’ve been reluctant to embrace the “Genie” product - having talked recently with four different support people, no one could explain definitively how the Genie sends its signals to the remote units - offered speculation only.  Can YouTube TV (at $49.99 per month) be far behind?.  Amazingly, the FedEx charges and the time for me to take the boxes to the FedEx facility far out-strips the “value” of re-furnished units with 8 year old technology.  It seems AT&T likely is trying its best to convince DirecTV users to switch to U-Verse so the DirecTV can dissipate into nothingness.