@muscle... can you smell what Apple is cooking?  These are the so called "set top" or "streaming" deals they are doing with the telco's and cable companies.  If you are already a customer, you can access your content via Apple TV now. :)   On top of it,  we are going to see a bunch of Apple TV apps coming from the developer community too.  The Apple Fall Event is going to be very interesting to see.  Of course, Apple TV has been supporting U-Verse for awhile now.  That's how I watch my biz channels in my office. YEEHAW! 
HBO GO activation page for Apple TV suggests support from Charter coming soon