All four U.S. national wireless firms will hook up with pay-TV partners, either in M&A or partnerships, says Oppenheimer, which says Comcast or Charter Communications looms as a buyer of the company T-Mobile US. “We see Comcast (CMCSA) (with TMUS and partnering with other cable companies), AT&T (T), Verizon Communications (VZ), and Sprint (S)the four likely surviving companies,” said Oppenheimer analyst Tim Horan in a research report.