NASA TV on Dish has been the SD feed. It's no longer an option...
From NASA:
ADVISORY:
Beginning on June 1, 2016, NASA Television becomes fully High Definition (HD) and will no longer distribute a Standard Definition (SD) feed. On that date, the programming previously aired on NASA TV Standard Definition Channel 102 will begin airing on the High Definition NASA TV Public Education Channel 101.
Viewers and media outlets are urged to make note of the below technical details for the new (all HD) NASA TV channel line-up, effective June 1, 2016, and contact your cable distributors and satellite service providers to ensure that they too are informed of the change and are able to continue providing NASA TV on their systems.
NASA Television Line-Up as of June 1, 2016:
Channel 101 – Public-Education Channel is available at:
NTV-1 (Public-Education) HD Program = 101 (HQ1) Compression Format = MPEG-2, Video PID = 0x112 hex / 274 decimal, AC-3 PID = 0x113 hex / 275 decimal, MPEG I Layer II Audio PID = 0x115 hex / 277 decimal.
Channel 103 – Media Channel is available at:
NTV-3 (Media) HD Program = 103 (HQ3) -- Compression Format = MPEG-4, Video PID = 0x1031 hex / 4145 decimal, AC-3 Audio PID = 0x1034 hex /4148 decimal, MPEG I Layer II Audio PID = 0x1035 hex /4149 decimal.
Channel 104 (Ultra High Definition Test Channel Operated by Harmonic):
UHD PROGRAM = 104 -- Compression Format: HEVC @ 13 Mbps, Video PID: 0x1041 hex/4161 decimal, MPEG I Layer II Audio PID: 0x1044 hex/ 4164 decimal, AAC-LC PID: 0x1045 hex/4165 decimal. *
From NASA:
ADVISORY:
Beginning on June 1, 2016, NASA Television becomes fully High Definition (HD) and will no longer distribute a Standard Definition (SD) feed. On that date, the programming previously aired on NASA TV Standard Definition Channel 102 will begin airing on the High Definition NASA TV Public Education Channel 101.
Viewers and media outlets are urged to make note of the below technical details for the new (all HD) NASA TV channel line-up, effective June 1, 2016, and contact your cable distributors and satellite service providers to ensure that they too are informed of the change and are able to continue providing NASA TV on their systems.
NASA Television Line-Up as of June 1, 2016:
Channel 101 – Public-Education Channel is available at:
NTV-1 (Public-Education) HD Program = 101 (HQ1) Compression Format = MPEG-2, Video PID = 0x112 hex / 274 decimal, AC-3 PID = 0x113 hex / 275 decimal, MPEG I Layer II Audio PID = 0x115 hex / 277 decimal.
Channel 103 – Media Channel is available at:
NTV-3 (Media) HD Program = 103 (HQ3) -- Compression Format = MPEG-4, Video PID = 0x1031 hex / 4145 decimal, AC-3 Audio PID = 0x1034 hex /4148 decimal, MPEG I Layer II Audio PID = 0x1035 hex /4149 decimal.
Channel 104 (Ultra High Definition Test Channel Operated by Harmonic):
UHD PROGRAM = 104 -- Compression Format: HEVC @ 13 Mbps, Video PID: 0x1041 hex/4161 decimal, MPEG I Layer II Audio PID: 0x1044 hex/ 4164 decimal, AAC-LC PID: 0x1045 hex/4165 decimal. *