Found a message from Verizon today on my DVR that TBS-HD is available today, 9/23, on channel 849, "just in time for the baseball playoffs." Message also says that the location (849) is temporary, it will change when the re-alignment occurs on 10/8-9.
Have seen feedback from other areas in the US that they have TBS-HD now also.
Good job Verizon, the first of many new HD channels soon, I hope.
Verizon FiOS TV, Internet, and phone