Direct TV dish

I recently upgraded to a smart TV .  Direct TV upgraded all my hardware equipment. Since than I get a sixty second delay when changing channels. Direct TV has changed out my Genie tower and internet box three times to no avail.  The Direct tv techs that have come to my house ( four times )tell me its a problem on Direct TV home end and Tech support tells me its a problem on my home equipment side. Meanwhile I have to live with this MESS!!!!!