Almost six years on from one of the most ill-fated acquisitions in media history, DirecTV is heading for a new lease of life after AT&T struck an agreement with private equity firm TPG at the tail end of last week. A curious caveat of the deal is that the U-verse and AT&T TV services will also be brought under the new standalone DirecTV umbrella, in which TPG will hold a 30% stake. It means that AT&T proper will become a one-man band when it comes to video, peddling HBO Max via the WarnerMedia arm. In other words, OTT video will become AT&T’s primary TV business once DirecTV is set loose. The promotion of streaming within the ranks of an operator…