three-channel transmission system
71Control of the National Grid — The National Grid is the high voltage electric power transmission network in Great Britain, connecting power stations and major substations, and has a synchronized organization such that electricity generated anywhere in Great Britain can be used …
72Broadcast television systems — There are several broadcast television systems in use in the world today. An analogue television system includes several components: a set of technical parameters for the broadcast signal, a system for encoding color, and possibly a system for… …
73DirecTV — Type Public company[1] Traded as NASDAQ:  …
74ATSC Standards — document a digital television format that will have replaced the analog NTSC television system [ [http://home.businesswire.com/portal/site/home/index.jsp?ndmViewId=news view ndmConfigId=1000001 newsId=20071017005469 newsLang=en Major retailer… …
75FM broadcasting — See also: frequency modulation and FM broadcast band FM broadcasting is a broadcasting technology pioneered by Edwin Howard Armstrong which uses frequency modulation (FM) to provide high fidelity sound over broadcast radio. The term FM band… …
76Coupon-eligible converter box — TV Converter Box Coupon Program URL https://www.dtv2009.gov/[dead link] …
77Right- and left-hand traffic —   countries with right hand traffic …
78National Grid (UK) — The National Grid is the high voltage electric power transmission network in Great Britain, connecting power stations and major substations and ensuring that electricity generated anywhere in Great Britain can be used to satisfy demand elsewhere …
79NBC — This article is about the television network. For NBC Philippines, see Nation Broadcasting Corporation. For other uses, see NBC (disambiguation). National Broadcasting Company (NBC) Type …
80Multiple sub-Nyquist sampling encoding — MUSE (Multiple sub Nyquist sampling encoding), was a dot interlaced digital video compression system that used analog modulation for transmission to deliver 1125 line high definition video signals to the home. Japan had the earliest working HDTV… …
