DVBsnoop is an analyzer for DVB broadcast streams / MPEG transport
streams.

DVBsnoop is a program to monitor, analyze, debug, dump or view
dvb/mpeg/dsm-cc/mhp stream information (TS, PES, SECTION) (e.g.
digital television) send via satellite, cable or terrestrial.

WWW: http://dvbsnoop.sourceforge.net/