Abc Affiliates Portland

Why doesn’t DirecTV offer ALL of the local/network HD channels in the Portland, OR metro area ?
I checked out the local channel availability in various areas around the country. In some areas, all 4 of the major affiliates (ABC, CBS, NBC, FOX) are available in HD, but in many areas only 1 or 2 are available. In the Portland metro area, only FOX and NBC are available (not even PBS). Is this a licensing/legal issue for DirecTV ? I have a Tivo/DirecTV investment and don’t want to switch to Comcast, but I want to maximize my HD programming availability.
If you hook up an antenna, you can use your DirecTV receiver to get your local HD channels terrestrially. HD channels take up a LOT of bandwidth and DirecTV as well as Dish are having a hard time fitting every single HD station in the country on their satellite. They have launched a couple satellites just for HD but until they are up and running the smaller local markets get shafted in the meantime
Local ABC Affiliate Coverage of Portland Bomb Scare
