NASA TV Goes Digital
– NASA TV Migrating To Digital Format: Additional Receiver Required
– NASA Space Station On-Orbit Status 25 May 2005
“At 9:20am, John and Sergei configured the TV hardware for an interactive 20-minute TV interview event, starting at 9:40am, with ABC News (Lisa Stark). [This was the first in-flight event utilizing the new NASA Television Digital Satellite System. Due to the signal encoding and decoding required, the new digital satellite system has a 5-second audio delay between ISS and ground reception, and vice versa.]”