Count Down TV

''Count Down TV'' (カウントダウン・ティーヴィー, Kauntodaun Tīvī) (also known as CDTV) is a Japanese late night music television show, originally broadcast on TBS from 1993 onwards. The program is shown weekly, and features a Japanese music video hit chart countdown, live performances from musicians and music information. It is presented by three CGI hosts.

Broadcast times

On all but two of the 26 TBS broadcasting channels, the show is aired on Sundays at 12:58am–1:43am. On Chubu-Nippon Broadcasting, the show airs after a one-hour delay (1:58am–2:43am), and on Ryukyu Broadcasting it airs later on Fridays at 12:56am–1:45am (due to a network exchange with Nippon Television and their variety show Enta no Kamisama (エンタの神様, The God of Entertainment)).

On areas without TBS programming, the program is shown at a delayed time on several NNS channels. On Akita Broadcasting, the show airs on Fridays from 1:13am–1:58am, on Fukui Broadcasting the show airs on Wednesdays from 12:59am–1:44am, and on Shikoku Broadcasting, the show airs on Wednesdays from 12:59am–1:44am.

Countdown

A countdown is a sequence of backward counting to indicate the time remaining before an event is scheduled to occur. NASA commonly employs the term "T-minus" during the preparation for and anticipation of a rocket launch, and even "E-minus" for events that involve spacecraft that are already in space, where the "T" could stand for "Test" or "Time", and the "E" stands for "Encounter", as with a comet or some other space object. Other events for which countdowns are commonly used include the detonation of an explosive, the start of a race, the start of the New Year, or any anxiously anticipated event. An early use of a countdown once signaled the start of a Cambridge University rowing race. The first known association with rockets was in the 1929 German science fiction movie Die Frau im Mond (English: Woman in the Moon) written by Thea von Harbou and directed by Fritz Lang in an attempt to increase the drama of the launch sequence of the story's lunar-bound rocket.

Rocketry

A countdown is a carefully devised set of procedures ending with the ignition of a rocket's engine. Depending on the type of vehicle used, countdowns can start from 72 to 96 hours before launch time.