You can watch NASA Television live via the Internet at the S-Meter site.
http://www.smeter.net/nasa/public-tv.php However, people ask from time-to-time how NASA TV broadcasts can be received via satellite. NASA Television is carried on an MPEG‐2 digital signal accessed via satellite AMC‐6, at 72 degrees west longitude, transponder 17C, 4040 MHz, vertical polarization. For those in Alaska or Hawaii, NASA Television can be seen on AMC‐7, at 137 degrees west longitude, transponder 18C, at 4060 MHz, horizontal polarization. In both instances, a Digital Video Broadcast, or DVB‐compliant Integrated Receiver Decoder, or IRD, with modulation of QPSK/DBV, data rate of 36.86 and FEC 3/4 is needed for reception.
-Bob