Netflix has made no bones about the fact that it's competing (hard) with HBO, and it seems that the sentiment is the same on the other side. According to CNET, HBO has stopped providing Netflix with DVDs of its shows.
AT&T has many strategies for trying to convince the US government to let it buy T-Mobile, but the one it emphasized was this -- it would attempt to make remaining carriers Verizon, Sprint and even a handful of rural entities