It just seems to me that everyone is thinking that Directv is going to have this monsterous HD lineup when the actual HD channels are not available yet. Whether they are fiber or not or whatever, I don't care...but I don't see why everyone is getting all excited thinking that 'their' favorite channel will be in HD on Directv when in all actuality Directv has stated several times that they will offer a 'stretch-o-version' of the SD version of the channel until the HD version is available, so if you think Disney HD, ABC Family HD or whatever is actually HD then switch to Directv, but I'd rather Dish not choose to do the same, these things are misleading and its seems no one knows these things, just cause Directv is adding stretched out SD versions and calling them HD now everyone thinks they are real channels broadcasting HD when they will be added to Directv as stretched SD and relabeled...
As for the RSN's that seem to be fibered, you will find a lot of Fox Sports Networks on Galaxy 15, and Galaxy 11, and AMC 1, YES is on AMC 1, STO, MASN, and a few others are on Galaxy 23 (121 degrees), NESN is on AMC 11, Comcast Sports Nets are scattered throughout AMC 3, Galaxy 11, and AMC 1, Altitude is on AMC 11, Big Ten is on Galaxy 15...so as far as all the RSN's being fibered, recheck your claim my friend!