ProgDVB

ProgDVB is a freeware/shareware software used to watch digital TV channels and listen to radio on computers. It supports DVB-S (satellite), DVB-S2, DVB-C (cable), DVB-T (terrestrial) and IPTV sources.

Internet polls show that ProgDVB is the most popular program used to watch DVB TV.

Editions
There is a freeware and a shareware edition of ProgDVB; the shareware edition adds:
 * Picture-in-picture support
 * Recorder and Scheduler
 * Digital Satellite Equipment Control

Starting with version 5.x ProgDVB began using the .NET Framework for its GUI.