alt.tv.tech.hdtv - join
High activity, 1247 subscribers, Usenet

alt.radio.digital - join
Digital radio signals.
Medium activity, 322 subscribers, Usenet

alt.home-theater.misc - join
Discussing all aspects of home theatre systems.
Low activity, 525 subscribers, Usenet

alt.video.ptv.tivo - join
Low activity, 601 subscribers, Usenet

comp.dcom.modems.cable - join
Cable modems and internet access via cable tv.
Low activity, 192 subscribers, Usenet

sci.engr.television.advanced - join
HDTV/DATV standards, equipment, practices, etc.
Low activity, 125 subscribers, Usenet

alt.satellite.tv - join
Low activity, 206 subscribers, Usenet

alt.cable-tv - join
Low activity, 116 subscribers, Usenet

alt.video.dvdr - join
DVD-R & DVD-RW Equipment & Media
Low activity, 301 subscribers, Usenet

sci.engr.television.broadcast - join
Broadcast facility equipment and practices.
Low activity, 93 subscribers, Usenet