A quick Ctrl + F search for the keyword “DirecTV” in AT&T’s first quarter 2021 results filing surfaces a grand total of zero matches. The operator has long been trying to keep its dwindling pay TV business at arm’s length as the part-sale to private equity firm TPG drags on, but to completely avoid the elephant in the room is typical AT&T. The reality was a brutal start to the new year as 620,000 premium video subscribers cut the cord across the three pay TV properties of DirecTV, U-verse, and AT&T TV – taking the total base down to 15.9 million premium video connections. While an improvement on the nearly 900,000 subs lost in the same period last year, a…