Signet Engineering Ltd
Signet Engineering Ltd provides engineering design, consulting and design software to Cable TV(CATV) companies and Telco's
http://members.shaw.ca/signet-eng

ESA Television
Features television frequencies, schedule of the European Space Agency's television broadcasts. Includes on-line video archive and tape ordering service.
http://television.esa.int/

Dick Clark Productions, Inc.
Develops and produces television programming for major television networks, first-run domestic syndicators, advertisers and cable television, and theatrical motion pictures on a limited basis. (Nasdaq: DCPI).
http://www.dickclarkproductions.com/

Communications & Energy Corporation
Communications & Energy Corp. (C&E) designs and manufactures passive electronic microwave filters for wireless television (MDS/ GWCS/ MMDS/ ITSF/ OFS), cable television (CATV), low-power TV (LPTV) and WiFi. CUSTOM FILTERS WITH NO MINIMUM!
http://www.cefilter.com/

CAI Television Producers & Media Productions
Script to screen video and television production services. Winner of 50 of television, video and electronic media's most prestigious awards.
http://www.caprod.com

Avation Advertising Service
avation PLC - a Singapore group providing aerospace and technology leasing, procurement and licensing
http://www.avation.net/

Avril Rowlands Film and Television training
Offers five and six day intensive residential courses on continuity for film and television and the work of the production assistant in the control room of a television studio. Worcestershire, UK.
http://www.avriltrain.com/

Baird Television
A site about the history of television, presently focusing on the television pioneering work of John Logie Baird
http://www.bairdtelevision.com/

The New School of Radio and Television
Training for careers in radio and television broadcasting, radio commercial production and television studio operations. Avid-certified instructors. Class duration is 15 weeks.
http://www.nsrt.org/

NTSC-TV
Tutorials on NTSC color television, covering from the antenna to the crt.
http://www.ntsc-tv.com/