We tell ya, DirecTV has the cable carriers at their mercy when it comes to these Mix Channels. For tennis enthusiasts in particular, you'll be hard pressed to find a viewing setup superior to this. Starting on January 18th with the Australian Open, the company will be integrating ESPN2 and Tennis Channel feeds into its six-screens-in-one Mix Channel, and for the first time ever, it will all be in high-definition. Viewers will be able to see the network channel and five court channels on a single screen, with each screen providing its own audio stream. Better still, DirecTV subscribers can expect the same kind of coverage for the French Open, Wimbledon and US Open tournaments later this year. And don't be shocked to hear of something similar for the upcoming golf season -- we get the feeling DirecTV is really going for the jugular here.