Originally Posted by Wendek
curious, is there any particular reason why not?
Not sure of an exact reason, but it probably has to do with most providers(DirecTV, Comcast, etc) resistance to carrying every and any sub-channel a station wants to put up. A lot depends on how the contract for carriage is negotiated, what is stipulated, what isn't, how much money changes hands, etc. Cable has some added restrictions on carriage that I don't believe are present with DBS and that may be why DirecTV does not carry any sub-channels currently whereas Comcast does.
That's not to say DirecTV won't carry sub-channels in the future, I'm sure technically they can, it's more a matter of priorities(for instance, adding KBCW-HD before adding any of KGO's sub-channels), and what is agreed upon in the carriage contract.