We come down pretty hard on stations that try to push stretch-o-vision off on us (upscaled SD is a lesser offense), but we might cut not-for-profit PBS a little slack. A little. Suffice it to say that between costs for production and satellite bandwidth, PBS is feeling the crunch. Only about 20-percent of PBS programming is headed to HD this year, and even then you may not be able to actually view it. PBS is strapped for satellite bandwidth, so three of the five time zone feeds (Mountain, Central and Alaska/Hawaii) will be getting the axe to make room for the HD streams. This means affected affiliates which do not have the ability to time-shift HD will be out of luck. The result for customers of said affiliates is, you guessed it, stretch-o-vision. Our advice -- if your local affiliate doesn't have the HD programming you want, donate some money or look into alternative ways of getting your PBS-fix.