The bird there I don't know which one is dying. 129 got one that they really needed now 61.5 needs one bad.
E3, E6 and E12 are all around 61.5. They are close enough together (50 miles apart) that they appear to be one satellite to a small Dish. If you had a 16' dish you could probably easily see the three different satellites.
E6 is currently turned off. It is a hot spare. They are still waiting on the FCC to approve them using it at 61.5. They will have to notify the FCC if they turn it on too. I do not really expect them to use E6 unless E3 has more failures.
E6 can provide three transponders that are currently not in use, because there previously was no satellite at 61.5 that could provide those three frequencies.
That is 21 National HD channels or 42 National SD channels that can be added instantly (once E*14 goes online at 119 to provide the matching space on Western Arc).
There is no reason for Dish to provide duplicate SD channels of HD channels on the EA if everything is in MPEG-4 anyway. Actually the number of TPs for HD channels might be more.
I think somethings need to be clarified. When E-14 is deployed to 119 W probably in May, Dish should be able to add more locals but I don't see how it adds more space for CONUS programming.
Don't forget... Dish still has some overflow of SD locals on CONUS beams on 119 and 110 (New York, Chicago, Denver). I think that makes up 2 TPs in the 110/119 fleet they would gain. As for their current plans now with E14, they are only TPs 1-5 on the downlink for spotbeams, when E-14 has way more capacity than that for beams. That will have to wait for the 8PSK migration on WA though.
Yes there is. Money. If Dish did away with all the SD feeds on EA then they would have have to change the authorization on the HD channels so all the SD subs would get them too. If they did away with the HD fee, then they could do this. But with the HD fee they will have to keep the SD feeds. They could do something in the firmware but that would be a nightmare and they would have already done this when they started EA.