That is because you have the sd equivalent of the National Geographic channel is in the top 250 . IF you sub the sd equivalent you get the hd equivalent. THe regular hd pack - the NG channel is what you get in the lowes top 100 pack anyway. Hd net , Hdnet movies, Universal ,NFl channel + the voom channels are in the basic hd pack anyway.
IN the next year or so they will do this for all hd channels . If you get the sd channel you get the hd equivalent channel. They will charge a flat tech fee instead like Directv is now doing. The hd pack will cease to exist. The question then will be, what basic pack will contain the above channels : The Voom channels, Hdnet, Hdnet movies, Universal, etc?