"And now, the HBO original series Westworld, exclusively on AT&T."
(Obviously AT&T wouldn't actually do this, but there are many degrees between it and the current status quo: Timed exclusivity, bumping up pricing for non-AT&T subscribers, or even a cap-and-zero-rating scheme for AT&T's own customers.)
Not true. Time Warner and Time Warner Cable are different companies. Time Warner Cable was recently acquired by Spectrum [https://www.charter.com/merger-twc]
(Obviously AT&T wouldn't actually do this, but there are many degrees between it and the current status quo: Timed exclusivity, bumping up pricing for non-AT&T subscribers, or even a cap-and-zero-rating scheme for AT&T's own customers.)