HBO/Cinemax preview starts Thursday
U-Verse: September 23rd (Thursday) to September 27th (Monday). Channel Guide: 802-843/1082-1846HD.Live linear channels, on-demand, and streaming from the app are all available.
If you don't see the channels, press menu, then select options, then "hide channels" where you can type the channel number into the remote.
You must subscribe to HD to get the HD channels.
And you can record shows and watch after the preview weekend.