Besides having a list of personal favorite Open Source tools and the rather interesting scematic in 3D world #80 (“our” issue) I found this rather interesting list:
Assemble an Open Source IPTV Production Suite
http://memap.org/?p=16 (rather old)
Interesting; Blender is the best kept secret 
LOGAN’s Gear
http://members.home.nl/albartus/software.xml
The neat thing about these lists is that you don’t get all app, just the best